12155051732 has 12 divisors (see below), whose sum is σ = 21362635476. Its totient is φ = 6051441600.

The previous prime is 12155051693. The next prime is 12155051737. The reversal of 12155051732 is 23715055121.

It can be written as a sum of positive squares in 2 ways, for example, as 8514860176 + 3640191556 = 92276^2 + 60334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155051737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520019 + ... + 6521882.

It is an arithmetic number, because the mean of its divisors is an integer number (1780219623).

Almost surely, 2^12155051732 is an apocalyptic number.

It is an amenable number.

12155051732 is a deficient number, since it is larger than the sum of its proper divisors (9207583744).

12155051732 is a wasteful number, since it uses less digits than its factorization.

12155051732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042138 (or 13042136 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 12155051732 in words is "twelve billion, one hundred fifty-five million, fifty-one thousand, seven hundred thirty-two".