156387404866 has 32 divisors (see below), whose sum is σ = 300369220992. Its totient is φ = 59283394560.

The previous prime is 156387404861. The next prime is 156387404881. The reversal of 156387404866 is 668404783651.

It is a self number, because there is not a number n which added to its sum of digits gives 156387404866.

It is not an unprimeable number, because it can be changed into a prime (156387404861) 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, 13717311 + ... + 13728706.

It is an arithmetic number, because the mean of its divisors is an integer number (9386538156).

Almost surely, 2^156387404866 is an apocalyptic number.

156387404866 is a deficient number, since it is larger than the sum of its proper divisors (143981816126).

156387404866 is a wasteful number, since it uses less digits than its factorization.

156387404866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27446074.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 156387404866 in words is "one hundred fifty-six billion, three hundred eighty-seven million, four hundred four thousand, eight hundred sixty-six".