264403621232650 has 12 divisors (see below), whose sum is σ = 491790735492822. Its totient is φ = 105761448493040.

The previous prime is 264403621232633. The next prime is 264403621232743. The reversal of 264403621232650 is 56232126304462.

It can be written as a sum of positive squares in 3 ways, for example, as 242677106141409 + 21726515091241 = 15578097^2 + 4661171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 264403621232650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2644036212277 + ... + 2644036212376.

Almost surely, 2^{264403621232650} is an apocalyptic number.

264403621232650 is a deficient number, since it is larger than the sum of its proper divisors (227387114260172).

264403621232650 is a wasteful number, since it uses less digits than its factorization.

264403621232650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288072424665 (or 5288072424660 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 264403621232650 in words is "two hundred sixty-four trillion, four hundred three billion, six hundred twenty-one million, two hundred thirty-two thousand, six hundred fifty".