216934331500 has 48 divisors (see below), whose sum is σ = 476189794080. Its totient is φ = 86333217600.

The previous prime is 216934331473. The next prime is 216934331503. The reversal of 216934331500 is 5133439612.

It is a self number, because there is not a number n which added to its sum of digits gives 216934331500.

It is not an unprimeable number, because it can be changed into a prime (216934331503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002690 + ... + 1199689.

It is an arithmetic number, because the mean of its divisors is an integer number (9920620710).

Almost surely, 2^216934331500 is an apocalyptic number.

216934331500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216934331500 is an abundant number, since it is smaller than the sum of its proper divisors (259255462580).

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

216934331500 is a wasteful number, since it uses less digits than its factorization.

216934331500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202595 (or 2202583 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 216934331500 in words is "two hundred sixteen billion, nine hundred thirty-four million, three hundred thirty-one thousand, five hundred".