11142520664 has 64 divisors (see below), whose sum is σ = 25402377600. Its totient is φ = 4515955200.

The previous prime is 11142520663. The next prime is 11142520673. The reversal of 11142520664 is 46602524111.

It is a self number, because there is not a number n which added to its sum of digits gives 11142520664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142520663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167582 + ... + 224429.

It is an arithmetic number, because the mean of its divisors is an integer number (396912150).

Almost surely, 2^11142520664 is an apocalyptic number.

It is an amenable number.

11142520664 is an abundant number, since it is smaller than the sum of its proper divisors (14259856936).

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

11142520664 is a wasteful number, since it uses less digits than its factorization.

11142520664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392064 (or 392060 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 11142520664 in words is "eleven billion, one hundred forty-two million, five hundred twenty thousand, six hundred sixty-four".