15940806154 has 16 divisors (see below), whose sum is σ = 29429180928. Its totient is φ = 6306252912.

The previous prime is 15940806127. The next prime is 15940806169. The reversal of 15940806154 is 45160804951.

It is a self number, because there is not a number n which added to its sum of digits gives 15940806154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43793242 + ... + 43793605.

It is an arithmetic number, because the mean of its divisors is an integer number (1839323808).

Almost surely, 2^15940806154 is an apocalyptic number.

15940806154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15940806154 is a deficient number, since it is larger than the sum of its proper divisors (13488374774).

15940806154 is a wasteful number, since it uses less digits than its factorization.

15940806154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87586869.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 15940806154 in words is "fifteen billion, nine hundred forty million, eight hundred six thousand, one hundred fifty-four".