11922357520 has 80 divisors (see below), whose sum is σ = 27970209792. Its totient is φ = 4726008320.

The previous prime is 11922357511. The next prime is 11922357527. The reversal of 11922357520 is 2575322911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 11922357520.

It is not an unprimeable number, because it can be changed into a prime (11922357527) 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, 4475709 + ... + 4478371.

Almost surely, 2^11922357520 is an apocalyptic number.

11922357520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11922357520 is an abundant number, since it is smaller than the sum of its proper divisors (16047852272).

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

11922357520 is a wasteful number, since it uses less digits than its factorization.

11922357520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3154 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 11922357520 in words is "eleven billion, nine hundred twenty-two million, three hundred fifty-seven thousand, five hundred twenty".