12155622567 has 32 divisors (see below), whose sum is σ = 19044827136. Its totient is φ = 6819410400.

The previous prime is 12155622547. The next prime is 12155622569. The reversal of 12155622567 is 76522655121.

It is not a de Polignac number, because 12155622567 - 2¹⁵ = 12155589799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155622569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234783 + ... + 281840.

It is an arithmetic number, because the mean of its divisors is an integer number (595150848).

Almost surely, 2^12155622567 is an apocalyptic number.

12155622567 is a deficient number, since it is larger than the sum of its proper divisors (6889204569).

12155622567 is a wasteful number, since it uses less digits than its factorization.

12155622567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516691.

The product of its digits is 252000, while the sum is 42.

The spelling of 12155622567 in words is "twelve billion, one hundred fifty-five million, six hundred twenty-two thousand, five hundred sixty-seven".