264661385252 has 48 divisors (see below), whose sum is σ = 506824819200. Its totient is φ = 119929205760.

The previous prime is 264661385239. The next prime is 264661385257. The reversal of 264661385252 is 252583166462.

It is a self number, because there is not a number n which added to its sum of digits gives 264661385252.

It is not an unprimeable number, because it can be changed into a prime (264661385257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23030324 + ... + 23041812.

It is an arithmetic number, because the mean of its divisors is an integer number (10558850400).

Almost surely, 2^264661385252 is an apocalyptic number.

264661385252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

264661385252 is a deficient number, since it is larger than the sum of its proper divisors (242163433948).

264661385252 is a wasteful number, since it uses less digits than its factorization.

264661385252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13076 (or 13074 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 50.

The spelling of 264661385252 in words is "two hundred sixty-four billion, six hundred sixty-one million, three hundred eighty-five thousand, two hundred fifty-two".