12152055040 has 72 divisors (see below), whose sum is σ = 29894787720. Its totient is φ = 4729430016.

The previous prime is 12152055031. The next prime is 12152055043. The reversal of 12152055040 is 4055025121.

It can be written as a sum of positive squares in 4 ways, for example, as 2241454336 + 9910600704 = 47344^2 + 99552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12152054996 and 12152055014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152055043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80935 + ... + 175654.

It is an arithmetic number, because the mean of its divisors is an integer number (415205385).

Almost surely, 2^12152055040 is an apocalyptic number.

12152055040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152055040 is an abundant number, since it is smaller than the sum of its proper divisors (17742732680).

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

12152055040 is an equidigital number, since it uses as much as digits as its factorization.

12152055040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256647 (or 256633 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 12152055040 in words is "twelve billion, one hundred fifty-two million, fifty-five thousand, forty".