12153174550 has 24 divisors (see below), whose sum is σ = 24659897112. Its totient is φ = 4419336000.

The previous prime is 12153174533. The next prime is 12153174563. The reversal of 12153174550 is 5547135121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11047791 + ... + 11048890.

It is an arithmetic number, because the mean of its divisors is an integer number (1027495713).

Almost surely, 2^12153174550 is an apocalyptic number.

12153174550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12153174550 is an abundant number, since it is smaller than the sum of its proper divisors (12506722562).

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

12153174550 is a wasteful number, since it uses less digits than its factorization.

12153174550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22096704 (or 22096699 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 12153174550 in words is "twelve billion, one hundred fifty-three million, one hundred seventy-four thousand, five hundred fifty".