11364512640 has 128 divisors (see below), whose sum is σ = 39010960800. Its totient is φ = 2797412352.

The previous prime is 11364512609. The next prime is 11364512659. The reversal of 11364512640 is 4621546311.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202695 + ... + 252614.

Almost surely, 2^11364512640 is an apocalyptic number.

11364512640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11364512640 is an abundant number, since it is smaller than the sum of its proper divisors (27646448160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11364512640 is a wasteful number, since it uses less digits than its factorization.

11364512640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455344 (or 455332 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 11364512640 in words is "eleven billion, three hundred sixty-four million, five hundred twelve thousand, six hundred forty".