155987064 has 48 divisors (see below), whose sum is σ = 423056400. Its totient is φ = 51922944.

The previous prime is 155987059. The next prime is 155987113. The reversal of 155987064 is 460789551.

155987064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82077 + ... + 83955.

It is an arithmetic number, because the mean of its divisors is an integer number (8813675).

Almost surely, 2^155987064 is an apocalyptic number.

It is an amenable number.

155987064 is an abundant number, since it is smaller than the sum of its proper divisors (267069336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155987064 is a wasteful number, since it uses less digits than its factorization.

155987064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 155987064 is about 12489.4781316114. The cubic root of 155987064 is about 538.3063810456.

The spelling of 155987064 in words is "one hundred fifty-five million, nine hundred eighty-seven thousand, sixty-four".