1656572673063 has 32 divisors (see below), whose sum is σ = 2805741338112. Its totient is φ = 844320297600.

The previous prime is 1656572673061. The next prime is 1656572673071. The reversal of 1656572673063 is 3603762756561.

It is not a de Polignac number, because 1656572673063 - 2¹ = 1656572673061 is a prime.

It is a super-2 number, since 2×1656572673063² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1656572672994 and 1656572673012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656572673061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67641628 + ... + 67666113.

It is an arithmetic number, because the mean of its divisors is an integer number (87679416816).

Almost surely, 2^{1656572673063} is an apocalyptic number.

1656572673063 is a deficient number, since it is larger than the sum of its proper divisors (1149168665049).

1656572673063 is a wasteful number, since it uses less digits than its factorization.

1656572673063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135307815.

The product of its (nonzero) digits is 28576800, while the sum is 57.

The spelling of 1656572673063 in words is "one trillion, six hundred fifty-six billion, five hundred seventy-two million, six hundred seventy-three thousand, sixty-three".