156493656 has 192 divisors, whose sum is σ = 493309440. Its totient is φ = 44721600.

The previous prime is 156493651. The next prime is 156493661. The reversal of 156493656 is 656394651.

156493656 is a `hidden beast` number, since 1 + 564 + 9 + 36 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (156493651) and next prime (156493661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156493651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2204101 + ... + 2204171.

It is an arithmetic number, because the mean of its divisors is an integer number (2569320).

Almost surely, 2^156493656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156493656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246654720).

156493656 is an abundant number, since it is smaller than the sum of its proper divisors (336815784).

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

156493656 is a wasteful number, since it uses less digits than its factorization.

156493656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 110 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 156493656 is about 12509.7424433919. The cubic root of 156493656 is about 538.8884956071. Note that the first 3 decimals are identical.

The spelling of 156493656 in words is "one hundred fifty-six million, four hundred ninety-three thousand, six hundred fifty-six".