264504121553620 has 48 divisors (see below), whose sum is σ = 598187484549648. Its totient is φ = 97662857748480.

The previous prime is 264504121553587. The next prime is 264504121553657. The reversal of 264504121553620 is 26355121405462.

It can be written as a sum of positive squares in 8 ways, for example, as 169646144429584 + 94857977124036 = 13024828^2 + 9739506^2 .

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, 193324330 + ... + 194687710.

It is an arithmetic number, because the mean of its divisors is an integer number (12462239261451).

Almost surely, 2^{264504121553620} is an apocalyptic number.

264504121553620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264504121553620 is an abundant number, since it is smaller than the sum of its proper divisors (333683362996028).

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

264504121553620 is a wasteful number, since it uses less digits than its factorization.

264504121553620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109580 (or 2109578 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 264504121553620 in words is "two hundred sixty-four trillion, five hundred four billion, one hundred twenty-one million, five hundred fifty-three thousand, six hundred twenty".