2170800161625 has 32 divisors (see below), whose sum is σ = 3614517623808. Its totient is φ = 1157020934400.

The previous prime is 2170800161597. The next prime is 2170800161639. The reversal of 2170800161625 is 5261610080712.

It is not a de Polignac number, because 2170800161625 - 2⁶ = 2170800161561 is a prime.

It is a super-2 number, since 2×2170800161625² (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, 1259472 + ... + 2434721.

It is an arithmetic number, because the mean of its divisors is an integer number (112953675744).

Almost surely, 2^{2170800161625} is an apocalyptic number.

2170800161625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2170800161625 is a deficient number, since it is larger than the sum of its proper divisors (1443717462183).

2170800161625 is a wasteful number, since it uses less digits than its factorization.

2170800161625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695778 (or 3695768 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 2170800161625 in words is "two trillion, one hundred seventy billion, eight hundred million, one hundred sixty-one thousand, six hundred twenty-five".