2556023161670 has 32 divisors (see below), whose sum is σ = 5019179920416. Its totient is φ = 929448172800.

The previous prime is 2556023161667. The next prime is 2556023161673. The reversal of 2556023161670 is 761613206552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2556023161667) and next prime (2556023161673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556023161673) 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, 8679482 + ... + 8969138.

It is an arithmetic number, because the mean of its divisors is an integer number (156849372513).

Almost surely, 2^{2556023161670} is an apocalyptic number.

2556023161670 is a deficient number, since it is larger than the sum of its proper divisors (2463156758746).

2556023161670 is a wasteful number, since it uses less digits than its factorization.

2556023161670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369896.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 2556023161670 in words is "two trillion, five hundred fifty-six billion, twenty-three million, one hundred sixty-one thousand, six hundred seventy".