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61056550060079 = 719652787703249
BaseRepresentation
bin11011110000111110101011…
…11110100100000000101111
322000011221121221201122022212
431320133111332210000233
531000322303303410304
6333504554125001035
715601122141320330
oct1570372576440057
9260157557648285
1061056550060079
11184aaa3484a142
126a212030b317b
13280b7b9914432
14111121d386287
1570d34ac4c66e
hex3787d5fa402f

61056550060079 has 16 divisors (see below), whose sum is σ = 73451705760000. Its totient is φ = 49579608484224.

The previous prime is 61056550060073. The next prime is 61056550060111. The reversal of 61056550060079 is 97006005565016.

It is a de Polignac number, because none of the positive numbers 2k-61056550060079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61056550060073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86469047 + ... + 87172295.

It is an arithmetic number, because the mean of its divisors is an integer number (4590731610000).

Almost surely, 261056550060079 is an apocalyptic number.

61056550060079 is a deficient number, since it is larger than the sum of its proper divisors (12395155699921).

61056550060079 is a wasteful number, since it uses less digits than its factorization.

61056550060079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356062.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 61056550060079 in words is "sixty-one trillion, fifty-six billion, five hundred fifty million, sixty thousand, seventy-nine".

Divisors: 1 7 19 133 652787 703249 4569509 4922743 12402953 13361731 86820671 93532117 459071804963 3213502634741 8722364294297 61056550060079