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664071201427652 = 221468311306803811
BaseRepresentation
bin1001011011111110000010000…
…0000100010001000011000100
310020002021120211211000200101122
42112333200200010101003010
51144020120310031141102
610312210033130413112
7256606363301454134
oct22677404004210304
93202246754020348
10664071201427652
111826590189a60a7
1262591545891198
13226708514a2405
14b9db3092dcac4
1551b9038a5a0a2
hex25bf8201110c4

664071201427652 has 12 divisors (see below), whose sum is σ = 1162203750227856. Its totient is φ = 332012987076840.

The previous prime is 664071201427553. The next prime is 664071201427703. The reversal of 664071201427652 is 256724102170466.

It is a junction number, because it is equal to n+sod(n) for n = 664071201427594 and 664071201427603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5653343174 + ... + 5653460637.

It is an arithmetic number, because the mean of its divisors is an integer number (96850312518988).

Almost surely, 2664071201427652 is an apocalyptic number.

It is an amenable number.

664071201427652 is a deficient number, since it is larger than the sum of its proper divisors (498132548800204).

664071201427652 is a wasteful number, since it uses less digits than its factorization.

664071201427652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11306818498 (or 11306818496 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 664071201427652 in words is "six hundred sixty-four trillion, seventy-one billion, two hundred one million, four hundred twenty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 14683 29366 58732 11306803811 22613607622 45227215244 166017800356913 332035600713826 664071201427652