12155567607 has 6 divisors (see below), whose sum is σ = 17558042112. Its totient is φ = 8103711732.

The previous prime is 12155567591. The next prime is 12155567609. The reversal of 12155567607 is 70676555121.

12155567607 is a `hidden beast` number, since 1 + 21 + 5 + 5 + 567 + 60 + 7 = 666.

It is not a de Polignac number, because 12155567607 - 2⁴ = 12155567591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155567609) 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, 675309303 + ... + 675309320.

It is an arithmetic number, because the mean of its divisors is an integer number (2926340352).

Almost surely, 2^12155567607 is an apocalyptic number.

12155567607 is a deficient number, since it is larger than the sum of its proper divisors (5402474505).

12155567607 is a wasteful number, since it uses less digits than its factorization.

12155567607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350618629 (or 1350618626 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 12155567607 in words is "twelve billion, one hundred fifty-five million, five hundred sixty-seven thousand, six hundred seven".