155616966 has 24 divisors (see below), whose sum is σ = 337493520. Its totient is φ = 51822576.

The previous prime is 155616961. The next prime is 155616977. The reversal of 155616966 is 669616551.

155616966 is a `hidden beast` number, since 1 + 556 + 1 + 6 + 96 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155616961) 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, 18480 + ... + 25548.

It is an arithmetic number, because the mean of its divisors is an integer number (14062230).

Almost surely, 2^155616966 is an apocalyptic number.

155616966 is an abundant number, since it is smaller than the sum of its proper divisors (181876554).

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

155616966 is a wasteful number, since it uses less digits than its factorization.

155616966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8300 (or 8297 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 155616966 is about 12474.6529410641. The cubic root of 155616966 is about 537.8803117710.

The spelling of 155616966 in words is "one hundred fifty-five million, six hundred sixteen thousand, nine hundred sixty-six".