400265160625 has 80 divisors (see below), whose sum is σ = 571669807104. Its totient is φ = 277497000000.

The previous prime is 400265160569. The next prime is 400265160629. The reversal of 400265160625 is 526061562004.

It is not a de Polignac number, because 400265160625 - 2²⁵ = 400231606193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400265160629) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14265360 + ... + 14293390.

Almost surely, 2^400265160625 is an apocalyptic number.

It is an amenable number.

400265160625 is a deficient number, since it is larger than the sum of its proper divisors (171404646479).

400265160625 is a wasteful number, since it uses less digits than its factorization.

400265160625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28160 (or 28145 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 400265160625 in words is "four hundred billion, two hundred sixty-five million, one hundred sixty thousand, six hundred twenty-five".