155768364 has 36 divisors (see below), whose sum is σ = 394351776. Its totient is φ = 51843168.

The previous prime is 155768363. The next prime is 155768369. The reversal of 155768364 is 463867551.

155768364 is a `hidden beast` number, since 1 + 557 + 68 + 36 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (155768363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23437 + ... + 29339.

It is an arithmetic number, because the mean of its divisors is an integer number (10954216).

Almost surely, 2^155768364 is an apocalyptic number.

It is an amenable number.

155768364 is an abundant number, since it is smaller than the sum of its proper divisors (238583412).

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

155768364 is a wasteful number, since it uses less digits than its factorization.

155768364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646 (or 6641 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 155768364 is about 12480.7196907871. The cubic root of 155768364 is about 538.0546878069.

The spelling of 155768364 in words is "one hundred fifty-five million, seven hundred sixty-eight thousand, three hundred sixty-four".