265620490971 has 32 divisors (see below), whose sum is σ = 409121653248. Its totient is φ = 151498621440.

The previous prime is 265620490939. The next prime is 265620491041. The reversal of 265620490971 is 179094026562.

It is not a de Polignac number, because 265620490971 - 2⁵ = 265620490939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (265620490171) 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, 11391801 + ... + 11415093.

It is an arithmetic number, because the mean of its divisors is an integer number (12785051664).

Almost surely, 2^265620490971 is an apocalyptic number.

265620490971 is a deficient number, since it is larger than the sum of its proper divisors (143501162277).

265620490971 is a wasteful number, since it uses less digits than its factorization.

265620490971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43651.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 265620490971 in words is "two hundred sixty-five billion, six hundred twenty million, four hundred ninety thousand, nine hundred seventy-one".