156499968 has 76 divisors (see below), whose sum is σ = 419429600. Its totient is φ = 51904512.

The previous prime is 156499949. The next prime is 156499969. The reversal of 156499968 is 869994651.

It is a nialpdrome in base 4 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156499969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786333 + ... + 786531.

Almost surely, 2^156499968 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 156499968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209714800).

156499968 is an abundant number, since it is smaller than the sum of its proper divisors (262929632).

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

156499968 is an frugal number, since it uses more digits than its factorization.

156499968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 204 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 156499968 is about 12509.9947242195. The cubic root of 156499968 is about 538.8957406686.

The spelling of 156499968 in words is "one hundred fifty-six million, four hundred ninety-nine thousand, nine hundred sixty-eight".