215233939100 has 72 divisors (see below), whose sum is σ = 472520704656. Its totient is φ = 85089600000.

The previous prime is 215233938989. The next prime is 215233939171. The reversal of 215233939100 is 1939332512.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5748440 + ... + 5785760.

Almost surely, 2^215233939100 is an apocalyptic number.

215233939100 is a gapful number since it is divisible by the number (20) 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 215233939100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236260352328).

215233939100 is an abundant number, since it is smaller than the sum of its proper divisors (257286765556).

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

215233939100 is a wasteful number, since it uses less digits than its factorization.

215233939100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38007 (or 38000 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 38.

The spelling of 215233939100 in words is "two hundred fifteen billion, two hundred thirty-three million, nine hundred thirty-nine thousand, one hundred".