1056662157018 has 64 divisors (see below), whose sum is σ = 2317574246400. Its totient is φ = 319217595840.

The previous prime is 1056662156989. The next prime is 1056662157059. The reversal of 1056662157018 is 8107512666501.

It is a super-2 number, since 2×1056662157018² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624003 + ... + 1581993.

It is an arithmetic number, because the mean of its divisors is an integer number (36212097600).

Almost surely, 2^{1056662157018} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056662157018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158787123200).

1056662157018 is an abundant number, since it is smaller than the sum of its proper divisors (1260912089382).

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

1056662157018 is a wasteful number, since it uses less digits than its factorization.

1056662157018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958267.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 1056662157018 in words is "one trillion, fifty-six billion, six hundred sixty-two million, one hundred fifty-seven thousand, eighteen".