156868600 has 72 divisors (see below), whose sum is σ = 424292040. Its totient is φ = 53780160.

The previous prime is 156868573. The next prime is 156868603. The reversal of 156868600 is 6868651.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156868603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1797 + ... + 17803.

It is an arithmetic number, because the mean of its divisors is an integer number (5892945).

Almost surely, 2^156868600 is an apocalyptic number.

156868600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156868600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212146020).

156868600 is an abundant number, since it is smaller than the sum of its proper divisors (267423440).

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

156868600 is a wasteful number, since it uses less digits than its factorization.

156868600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16037 (or 16021 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 156868600 is about 12524.7195577386. The cubic root of 156868600 is about 539.3185276418.

The spelling of 156868600 in words is "one hundred fifty-six million, eight hundred sixty-eight thousand, six hundred".