12115553054 has 32 divisors (see below), whose sum is σ = 20329233120. Its totient is φ = 5367398400.

The previous prime is 12115553033. The next prime is 12115553059. The reversal of 12115553054 is 45035551121.

It is a self number, because there is not a number n which added to its sum of digits gives 12115553054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115553059) 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, 979742 + ... + 992030.

It is an arithmetic number, because the mean of its divisors is an integer number (635288535).

Almost surely, 2^12115553054 is an apocalyptic number.

12115553054 is a deficient number, since it is larger than the sum of its proper divisors (8213680066).

12115553054 is a wasteful number, since it uses less digits than its factorization.

12115553054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 12115553054 in words is "twelve billion, one hundred fifteen million, five hundred fifty-three thousand, fifty-four".