1056255614561 has 16 divisors (see below), whose sum is σ = 1220101361664. Its totient is φ = 895688285184.

The previous prime is 1056255614543. The next prime is 1056255614567. The reversal of 1056255614561 is 1654165526501.

It is a de Polignac number, because none of the positive numbers 2^k-1056255614561 is a prime.

It is a super-2 number, since 2×1056255614561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056255614567) 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, 1369100 + ... + 1996733.

It is an arithmetic number, because the mean of its divisors is an integer number (76256335104).

Almost surely, 2^{1056255614561} is an apocalyptic number.

It is an amenable number.

1056255614561 is a deficient number, since it is larger than the sum of its proper divisors (163845747103).

1056255614561 is a wasteful number, since it uses less digits than its factorization.

1056255614561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366320.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 1056255614561 in words is "one trillion, fifty-six billion, two hundred fifty-five million, six hundred fourteen thousand, five hundred sixty-one".