15078787161 has 16 divisors (see below), whose sum is σ = 20168628480. Its totient is φ = 10020767360.

The previous prime is 15078787123. The next prime is 15078787181. The reversal of 15078787161 is 16178787051.

It is a cyclic number.

It is not a de Polignac number, because 15078787161 - 2⁹ = 15078786649 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (15078787111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2965141 + ... + 2970221.

It is an arithmetic number, because the mean of its divisors is an integer number (1260539280).

Almost surely, 2^15078787161 is an apocalyptic number.

It is an amenable number.

15078787161 is a deficient number, since it is larger than the sum of its proper divisors (5089841319).

15078787161 is a wasteful number, since it uses less digits than its factorization.

15078787161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016.

The product of its (nonzero) digits is 658560, while the sum is 51.

The spelling of 15078787161 in words is "fifteen billion, seventy-eight million, seven hundred eighty-seven thousand, one hundred sixty-one".