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57664317165 = 35713253116691
BaseRepresentation
bin110101101101000011…
…111010011011101101
312111211201120211020120
4311231003322123231
51421044031122130
642253550235153
74110655415520
oct655503723355
9174751524216
1057664317165
1122501004a74
12b2137b5ab9
13558c8a0540
142b105b6bb7
151777683910
hexd6d0fa6ed

57664317165 has 64 divisors (see below), whose sum is σ = 113606019072. Its totient is φ = 24322003200.

The previous prime is 57664317157. The next prime is 57664317167. The reversal of 57664317165 is 56171346675.

It is not a de Polignac number, because 57664317165 - 23 = 57664317157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57664317167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3446470 + ... + 3463160.

It is an arithmetic number, because the mean of its divisors is an integer number (1775094048).

Almost surely, 257664317165 is an apocalyptic number.

It is an amenable number.

57664317165 is a deficient number, since it is larger than the sum of its proper divisors (55941701907).

57664317165 is a wasteful number, since it uses less digits than its factorization.

57664317165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250.

The product of its digits is 3175200, while the sum is 51.

The spelling of 57664317165 in words is "fifty-seven billion, six hundred sixty-four million, three hundred seventeen thousand, one hundred sixty-five".

Divisors: 1 3 5 7 13 15 21 35 39 65 91 105 195 273 455 1365 2531 7593 12655 16691 17717 32903 37965 50073 53151 83455 88585 98709 116837 164515 216983 230321 250365 265755 350511 493545 584185 650949 690963 1084915 1151605 1518881 1752555 3254745 3454815 4556643 7594405 22783215 42244921 126734763 211224605 295714447 549183973 633673815 887143341 1478572235 1647551919 2745919865 3844287811 4435716705 8237759595 11532863433 19221439055 57664317165