12006053520 has 80 divisors (see below), whose sum is σ = 37560304320. Its totient is φ = 3172234752.

The previous prime is 12006053441. The next prime is 12006053533. The reversal of 12006053520 is 2535060021.

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

It is a super-2 number, since 2×12006053520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203314 + ... + 255633.

It is an arithmetic number, because the mean of its divisors is an integer number (469503804).

Almost surely, 2^12006053520 is an apocalyptic number.

12006053520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12006053520 is an abundant number, since it is smaller than the sum of its proper divisors (25554250800).

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

12006053520 is a wasteful number, since it uses less digits than its factorization.

12006053520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459072 (or 459066 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 12006053520 in words is "twelve billion, six million, fifty-three thousand, five hundred twenty".