265401363064 has 32 divisors (see below), whose sum is σ = 517804384320. Its totient is φ = 127426738816.

The previous prime is 265401363053. The next prime is 265401363091. The reversal of 265401363064 is 460363104562.

It is a happy number.

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, 6639079 + ... + 6678934.

It is an arithmetic number, because the mean of its divisors is an integer number (16181387010).

Almost surely, 2^265401363064 is an apocalyptic number.

It is an amenable number.

265401363064 is a deficient number, since it is larger than the sum of its proper divisors (252403021256).

265401363064 is a wasteful number, since it uses less digits than its factorization.

265401363064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318119 (or 13318115 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 265401363064 in words is "two hundred sixty-five billion, four hundred one million, three hundred sixty-three thousand, sixty-four".