156166236 has 18 divisors (see below), whose sum is σ = 394753632. Its totient is φ = 52055400.

The previous prime is 156166211. The next prime is 156166237. The reversal of 156166236 is 632661651.

156166236 is a `hidden beast` number, since 1 + 5 + 616 + 6 + 2 + 36 = 666.

156166236 is digitally balanced in base 2 and base 3, because in such bases 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 (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4337951 = 156166236 / (1 + 5 + 6 + 1 + 6 + 6 + 2 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 156166236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156166237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2168940 + ... + 2169011.

Almost surely, 2^156166236 is an apocalyptic number.

It is an amenable number.

156166236 is an abundant number, since it is smaller than the sum of its proper divisors (238587396).

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

156166236 is a wasteful number, since it uses less digits than its factorization.

156166236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337961 (or 4337956 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 156166236 is about 12496.6489908295. The cubic root of 156166236 is about 538.5124078012.

The spelling of 156166236 in words is "one hundred fifty-six million, one hundred sixty-six thousand, two hundred thirty-six".