12155766102 has 12 divisors (see below), whose sum is σ = 26337493260. Its totient is φ = 4051922028.

The previous prime is 12155766101. The next prime is 12155766151. The reversal of 12155766102 is 20166755121.

12155766102 is a `hidden beast` number, since 1 + 21 + 5 + 576 + 61 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155766101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337660152 + ... + 337660187.

It is an arithmetic number, because the mean of its divisors is an integer number (2194791105).

Almost surely, 2^12155766102 is an apocalyptic number.

12155766102 is an abundant number, since it is smaller than the sum of its proper divisors (14181727158).

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

12155766102 is a wasteful number, since it uses less digits than its factorization.

12155766102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675320347 (or 675320344 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 12155766102 in words is "twelve billion, one hundred fifty-five million, seven hundred sixty-six thousand, one hundred two".