265625316413406 has 16 divisors (see below), whose sum is σ = 590278480918800. Its totient is φ = 88541772137784.

The previous prime is 265625316413399. The next prime is 265625316413437. The reversal of 265625316413406 is 604314613526562.

265625316413406 is a `hidden beast` number, since 2 + 6 + 5 + 6 + 2 + 531 + 64 + 1 + 3 + 40 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 4918987340989 = 265625316413406 / (2 + 6 + 5 + 6 + 2 + 5 + 3 + 1 + 6 + 4 + 1 + 3 + 4 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2459493670441 + ... + 2459493670548.

It is an arithmetic number, because the mean of its divisors is an integer number (36892405057425).

Almost surely, 2^{265625316413406} is an apocalyptic number.

265625316413406 is an abundant number, since it is smaller than the sum of its proper divisors (324653164505394).

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

265625316413406 is a wasteful number, since it uses less digits than its factorization.

265625316413406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918987341000 (or 4918987340994 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

Adding to 265625316413406 its reverse (604314613526562), we get a palindrome (869939929939968).

The spelling of 265625316413406 in words is "two hundred sixty-five trillion, six hundred twenty-five billion, three hundred sixteen million, four hundred thirteen thousand, four hundred six".