156661652 has 12 divisors (see below), whose sum is σ = 313323360. Its totient is φ = 67140696.

The previous prime is 156661651. The next prime is 156661699. The reversal of 156661652 is 256166651.

156661652 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156661651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797502 + ... + 2797557.

It is an arithmetic number, because the mean of its divisors is an integer number (26110280).

Almost surely, 2^156661652 is an apocalyptic number.

It is an amenable number.

156661652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

156661652 is a wasteful number, since it uses less digits than its factorization.

156661652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595070 (or 5595068 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 156661652 is about 12516.4552489912. The cubic root of 156661652 is about 539.0812589823.

The spelling of 156661652 in words is "one hundred fifty-six million, six hundred sixty-one thousand, six hundred fifty-two".