264336563624642 has 8 divisors (see below), whose sum is σ = 396504926065296. Its totient is φ = 132168254936212.

The previous prime is 264336563624641. The next prime is 264336563624663. The reversal of 264336563624642 is 246426365633462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×264336563624642² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264336563624641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762213 + ... + 23158215.

It is an arithmetic number, because the mean of its divisors is an integer number (49563115758162).

Almost surely, 2^{264336563624642} is an apocalyptic number.

264336563624642 is a deficient number, since it is larger than the sum of its proper divisors (132168362440654).

264336563624642 is a wasteful number, since it uses less digits than its factorization.

264336563624642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876112.

The product of its digits is 537477120, while the sum is 62.

The spelling of 264336563624642 in words is "two hundred sixty-four trillion, three hundred thirty-six billion, five hundred sixty-three million, six hundred twenty-four thousand, six hundred forty-two".