265132664640 has 112 divisors (see below), whose sum is σ = 935329152960. Its totient is φ = 70702041600.

The previous prime is 265132664623. The next prime is 265132664653. The reversal of 265132664640 is 46466231562.

It is a happy number.

265132664640 is a `hidden beast` number, since 265 + 1 + 326 + 6 + 4 + 64 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15334686 + ... + 15351965.

Almost surely, 2^265132664640 is an apocalyptic number.

265132664640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265132664640 is an abundant number, since it is smaller than the sum of its proper divisors (670196488320).

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

265132664640 is a wasteful number, since it uses less digits than its factorization.

265132664640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30686677 (or 30686661 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 265132664640 in words is "two hundred sixty-five billion, one hundred thirty-two million, six hundred sixty-four thousand, six hundred forty".