12612165551 has 8 divisors (see below), whose sum is σ = 12628704480. Its totient is φ = 12595640832.

The previous prime is 12612165541. The next prime is 12612165571. The reversal of 12612165551 is 15556121621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12612165551 is a prime.

It is a super-2 number, since 2×12612165551² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612165521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269491 + ... + 4272443.

It is an arithmetic number, because the mean of its divisors is an integer number (1578588060).

Almost surely, 2^12612165551 is an apocalyptic number.

12612165551 is a deficient number, since it is larger than the sum of its proper divisors (16538929).

12612165551 is a wasteful number, since it uses less digits than its factorization.

12612165551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105.

The product of its digits is 18000, while the sum is 35.

The spelling of 12612165551 in words is "twelve billion, six hundred twelve million, one hundred sixty-five thousand, five hundred fifty-one".