15162278651 has 4 divisors (see below), whose sum is σ = 16328607792. Its totient is φ = 13995949512.

The previous prime is 15162278639. The next prime is 15162278657. The reversal of 15162278651 is 15687226151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15162278651 - 2⁶ = 15162278587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15162278657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583164551 + ... + 583164576.

It is an arithmetic number, because the mean of its divisors is an integer number (4082151948).

Almost surely, 2^15162278651 is an apocalyptic number.

15162278651 is a deficient number, since it is larger than the sum of its proper divisors (1166329141).

15162278651 is a wasteful number, since it uses less digits than its factorization.

15162278651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166329140.

The product of its digits is 201600, while the sum is 44.

The spelling of 15162278651 in words is "fifteen billion, one hundred sixty-two million, two hundred seventy-eight thousand, six hundred fifty-one".