1056516155 has 12 divisors (see below), whose sum is σ = 1325341920. Its totient is φ = 808462512.

The previous prime is 1056516137. The next prime is 1056516169. The reversal of 1056516155 is 5516156501.

It is not a de Polignac number, because 1056516155 - 2¹⁸ = 1056254011 is a prime.

It is a super-2 number, since 2×1056516155² = 2232452771551968050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197075 + ... + 202364.

It is an arithmetic number, because the mean of its divisors is an integer number (110445160).

Almost surely, 2^1056516155 is an apocalyptic number.

1056516155 is a deficient number, since it is larger than the sum of its proper divisors (268825765).

1056516155 is an equidigital number, since it uses as much as digits as its factorization.

1056516155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399490 (or 399467 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1056516155 is about 32504.0944343940. The cubic root of 1056516155 is about 1018.4945608709.

The spelling of 1056516155 in words is "one billion, fifty-six million, five hundred sixteen thousand, one hundred fifty-five".