1056215017660 has 24 divisors (see below), whose sum is σ = 2419692586416. Its totient is φ = 384078188160.

The previous prime is 1056215017639. The next prime is 1056215017681. The reversal of 1056215017660 is 667105126501.

It is an interprime number because it is at equal distance from previous prime (1056215017639) and next prime (1056215017681).

It is a super-2 number, since 2×1056215017660² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400488457 + ... + 2400488896.

It is an arithmetic number, because the mean of its divisors is an integer number (100820524434).

Almost surely, 2^{1056215017660} is an apocalyptic number.

1056215017660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056215017660 is an abundant number, since it is smaller than the sum of its proper divisors (1363477568756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1056215017660 is a wasteful number, since it uses less digits than its factorization.

1056215017660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800977373 (or 4800977371 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 1056215017660 in words is "one trillion, fifty-six billion, two hundred fifteen million, seventeen thousand, six hundred sixty".