265421266404 has 96 divisors (see below), whose sum is σ = 710148612096. Its totient is φ = 75582366720.

The previous prime is 265421266399. The next prime is 265421266423. The reversal of 265421266404 is 404662124562.

265421266404 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 35589844 + ... + 35597300.

It is an arithmetic number, because the mean of its divisors is an integer number (7397381376).

Almost surely, 2^265421266404 is an apocalyptic number.

It is an amenable number.

265421266404 is an abundant number, since it is smaller than the sum of its proper divisors (444727345692).

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

265421266404 is a wasteful number, since it uses less digits than its factorization.

265421266404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 265421266404 in words is "two hundred sixty-five billion, four hundred twenty-one million, two hundred sixty-six thousand, four hundred four".