264053376621 has 24 divisors (see below), whose sum is σ = 394589594880. Its totient is φ = 169953727776.

The previous prime is 264053376607. The next prime is 264053376659. The reversal of 264053376621 is 126673350462.

264053376621 is a `hidden beast` number, since 2 + 6 + 40 + 533 + 76 + 6 + 2 + 1 = 666.

It is not a de Polignac number, because 264053376621 - 2¹¹ = 264053374573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264053376221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5406316 + ... + 5454938.

It is an arithmetic number, because the mean of its divisors is an integer number (16441233120).

Almost surely, 2^264053376621 is an apocalyptic number.

It is an amenable number.

264053376621 is a deficient number, since it is larger than the sum of its proper divisors (130536218259).

264053376621 is a wasteful number, since it uses less digits than its factorization.

264053376621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69465 (or 69462 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 264053376621 in words is "two hundred sixty-four billion, fifty-three million, three hundred seventy-six thousand, six hundred twenty-one".