156399064 has 8 divisors (see below), whose sum is σ = 293248260. Its totient is φ = 78199528.

The previous prime is 156398987. The next prime is 156399071. The reversal of 156399064 is 460993651.

156399064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 156399064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9774934 + ... + 9774949.

Almost surely, 2^156399064 is an apocalyptic number.

It is an amenable number.

156399064 is a deficient number, since it is larger than the sum of its proper divisors (136849196).

156399064 is a wasteful number, since it uses less digits than its factorization.

156399064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19549889 (or 19549885 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 156399064 is about 12505.9611385931. The cubic root of 156399064 is about 538.7798973509.

The spelling of 156399064 in words is "one hundred fifty-six million, three hundred ninety-nine thousand, sixty-four".