156213886500 has 864 divisors, whose sum is σ = 626234394240. Its totient is φ = 33802272000.

The previous prime is 156213886463. The next prime is 156213886523. The reversal of 156213886500 is 5688312651.

156213886500 is a `hidden beast` number, since 1 + 5 + 6 + 2 + 138 + 8 + 6 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 113115810 + ... + 113117190.

Almost surely, 2^156213886500 is an apocalyptic number.

156213886500 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 156213886500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313117197120).

156213886500 is an abundant number, since it is smaller than the sum of its proper divisors (470020507740).

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

156213886500 is a wasteful number, since it uses less digits than its factorization.

156213886500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 156213886500 in words is "one hundred fifty-six billion, two hundred thirteen million, eight hundred eighty-six thousand, five hundred".