264404231621015 has 8 divisors (see below), whose sum is σ = 317970358893888. Its totient is φ = 211066531331040.

The previous prime is 264404231620961. The next prime is 264404231621029. The reversal of 264404231621015 is 510126132404462.

264404231621015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 264404231621015 - 2⁶ = 264404231620951 is a prime.

It is a Duffinian number.

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, 57106743176 + ... + 57106747805.

It is an arithmetic number, because the mean of its divisors is an integer number (39746294861736).

Almost surely, 2^{264404231621015} is an apocalyptic number.

264404231621015 is a deficient number, since it is larger than the sum of its proper divisors (53566127272873).

264404231621015 is a wasteful number, since it uses less digits than its factorization.

264404231621015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114213491449.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 264404231621015 in words is "two hundred sixty-four trillion, four hundred four billion, two hundred thirty-one million, six hundred twenty-one thousand, fifteen".