11142002564 has 24 divisors (see below), whose sum is σ = 24309824448. Its totient is φ = 4341039840.

The previous prime is 11142002537. The next prime is 11142002579. The reversal of 11142002564 is 46520024111.

It is a super-2 number, since 2×11142002564² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18087359 + ... + 18087974.

It is an arithmetic number, because the mean of its divisors is an integer number (1012909352).

Almost surely, 2^11142002564 is an apocalyptic number.

11142002564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11142002564 is an abundant number, since it is smaller than the sum of its proper divisors (13167821884).

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

11142002564 is a wasteful number, since it uses less digits than its factorization.

11142002564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36175355 (or 36175353 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 11142002564 its reverse (46520024111), we get a palindrome (57662026675).

The spelling of 11142002564 in words is "eleven billion, one hundred forty-two million, two thousand, five hundred sixty-four".