264643204144 has 40 divisors (see below), whose sum is σ = 564897750480. Its totient is φ = 119101344000.

The previous prime is 264643204127. The next prime is 264643204169. The reversal of 264643204144 is 441402346462.

It is a junction number, because it is equal to n+sod(n) for n = 264643204097 and 264643204106.

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, 7426059 + ... + 7461610.

It is an arithmetic number, because the mean of its divisors is an integer number (14122443762).

Almost surely, 2^264643204144 is an apocalyptic number.

It is an amenable number.

264643204144 is an abundant number, since it is smaller than the sum of its proper divisors (300254546336).

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

264643204144 is a wasteful number, since it uses less digits than its factorization.

264643204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14887789 (or 14887783 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 264643204144 in words is "two hundred sixty-four billion, six hundred forty-three million, two hundred four thousand, one hundred forty-four".