265151432220066 has 64 divisors (see below), whose sum is σ = 676218038169600. Its totient is φ = 75440574831888.

The previous prime is 265151432220041. The next prime is 265151432220071. The reversal of 265151432220066 is 660022234151562.

265151432220066 is a `hidden beast` number, since 2 + 6 + 5 + 1 + 5 + 1 + 432 + 2 + 200 + 6 + 6 = 666.

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, 1467396720 + ... + 1467577403.

It is an arithmetic number, because the mean of its divisors is an integer number (10565906846400).

Almost surely, 2^{265151432220066} is an apocalyptic number.

265151432220066 is an abundant number, since it is smaller than the sum of its proper divisors (411066605949534).

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

265151432220066 is a wasteful number, since it uses less digits than its factorization.

265151432220066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934974380 (or 2934974374 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 265151432220066 in words is "two hundred sixty-five trillion, one hundred fifty-one billion, four hundred thirty-two million, two hundred twenty thousand, sixty-six".