264661514428 has 24 divisors (see below), whose sum is σ = 464717318688. Its totient is φ = 131885784576.

The previous prime is 264661514413. The next prime is 264661514461. The reversal of 264661514428 is 824415166462.

It is a congruent number.

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, 1570425 + ... + 1730767.

It is an arithmetic number, because the mean of its divisors is an integer number (19363221612).

Almost surely, 2^264661514428 is an apocalyptic number.

It is an amenable number.

264661514428 is a deficient number, since it is larger than the sum of its proper divisors (200055804260).

264661514428 is a wasteful number, since it uses less digits than its factorization.

264661514428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161733 (or 161731 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The spelling of 264661514428 in words is "two hundred sixty-four billion, six hundred sixty-one million, five hundred fourteen thousand, four hundred twenty-eight".