156154450646 has 32 divisors (see below), whose sum is σ = 242491324320. Its totient is φ = 75358757376.

The previous prime is 156154450601. The next prime is 156154450667. The reversal of 156154450646 is 646054451651.

It is a self number, because there is not a number n which added to its sum of digits gives 156154450646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14117150 + ... + 14128206.

It is an arithmetic number, because the mean of its divisors is an integer number (7577853885).

Almost surely, 2^156154450646 is an apocalyptic number.

156154450646 is a deficient number, since it is larger than the sum of its proper divisors (86336873674).

156154450646 is a wasteful number, since it uses less digits than its factorization.

156154450646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 156154450646 in words is "one hundred fifty-six billion, one hundred fifty-four million, four hundred fifty thousand, six hundred forty-six".