11157652540 has 12 divisors (see below), whose sum is σ = 23431070376. Its totient is φ = 4463061008.

The previous prime is 11157652529. The next prime is 11157652553. The reversal of 11157652540 is 4525675111.

It is a self number, because there is not a number n which added to its sum of digits gives 11157652540.

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 3 ways as a sum of consecutive naturals, for example, 278941294 + ... + 278941333.

It is an arithmetic number, because the mean of its divisors is an integer number (1952589198).

Almost surely, 2^11157652540 is an apocalyptic number.

11157652540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11157652540 is an abundant number, since it is smaller than the sum of its proper divisors (12273417836).

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

11157652540 is a wasteful number, since it uses less digits than its factorization.

11157652540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557882636 (or 557882634 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 11157652540 in words is "eleven billion, one hundred fifty-seven million, six hundred fifty-two thousand, five hundred forty".