264921228080 has 20 divisors (see below), whose sum is σ = 615941855472. Its totient is φ = 105968491200.

The previous prime is 264921228079. The next prime is 264921228083. The reversal of 264921228080 is 80822129462.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (264921228083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1655757596 + ... + 1655757755.

Almost surely, 2^264921228080 is an apocalyptic number.

264921228080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264921228080 is an abundant number, since it is smaller than the sum of its proper divisors (351020627392).

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

264921228080 is a wasteful number, since it uses less digits than its factorization.

264921228080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311515364 (or 3311515358 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 264921228080 in words is "two hundred sixty-four billion, nine hundred twenty-one million, two hundred twenty-eight thousand, eighty".