15551162689 has 8 divisors (see below), whose sum is σ = 15592888640. Its totient is φ = 15509492496.

The previous prime is 15551162651. The next prime is 15551162699. The reversal of 15551162689 is 98626115551.

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

It is a cyclic number.

It is not a de Polignac number, because 15551162689 - 2²⁵ = 15517608257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15551162629) 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, 577759 + ... + 604075.

It is an arithmetic number, because the mean of its divisors is an integer number (1949111080).

Almost surely, 2^15551162689 is an apocalyptic number.

It is an amenable number.

15551162689 is a deficient number, since it is larger than the sum of its proper divisors (41725951).

15551162689 is an equidigital number, since it uses as much as digits as its factorization.

15551162689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27879.

The product of its digits is 648000, while the sum is 49.

The spelling of 15551162689 in words is "fifteen billion, five hundred fifty-one million, one hundred sixty-two thousand, six hundred eighty-nine".