264139950501 has 48 divisors (see below), whose sum is σ = 437461015680. Its totient is φ = 150445975680.

The previous prime is 264139950493. The next prime is 264139950511. The reversal of 264139950501 is 105059931462.

264139950501 is a `hidden beast` number, since 2 + 6 + 4 + 1 + 3 + 99 + 50 + 501 = 666.

It is not a de Polignac number, because 264139950501 - 2³ = 264139950493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264139950511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49084831 + ... + 49090211.

It is an arithmetic number, because the mean of its divisors is an integer number (9113771160).

Almost surely, 2^264139950501 is an apocalyptic number.

264139950501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

264139950501 is a deficient number, since it is larger than the sum of its proper divisors (173321065179).

264139950501 is a wasteful number, since it uses less digits than its factorization.

264139950501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786 (or 7783 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 264139950501 in words is "two hundred sixty-four billion, one hundred thirty-nine million, nine hundred fifty thousand, five hundred one".