156649416 has 256 divisors, whose sum is σ = 525312000. Its totient is φ = 37739520.

The previous prime is 156649393. The next prime is 156649421. The reversal of 156649416 is 614946651.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1982865 + ... + 1982943.

It is an arithmetic number, because the mean of its divisors is an integer number (2052000).

Almost surely, 2^156649416 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 156649416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262656000).

156649416 is an abundant number, since it is smaller than the sum of its proper divisors (368662584).

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

156649416 is a wasteful number, since it uses less digits than its factorization.

156649416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 168 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 156649416 is about 12515.9664429080. The cubic root of 156649416 is about 539.0672237032.

The spelling of 156649416 in words is "one hundred fifty-six million, six hundred forty-nine thousand, four hundred sixteen".