216142786704 has 40 divisors (see below), whose sum is σ = 601320318592. Its totient is φ = 66505472640.

The previous prime is 216142786681. The next prime is 216142786721. The reversal of 216142786704 is 407687241612.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173190712 + ... + 173191959.

Almost surely, 2^216142786704 is an apocalyptic number.

216142786704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216142786704 is an abundant number, since it is smaller than the sum of its proper divisors (385177531888).

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

216142786704 is a wasteful number, since it uses less digits than its factorization.

216142786704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346382695 (or 346382689 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 216142786704 in words is "two hundred sixteen billion, one hundred forty-two million, seven hundred eighty-six thousand, seven hundred four".