187936665216 has 64 divisors (see below), whose sum is σ = 501995815200. Its totient is φ = 62295557120.

The previous prime is 187936665199. The next prime is 187936665281. The reversal of 187936665216 is 612566639781.

187936665216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 187936665216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298355 + ... + 1435826.

Almost surely, 2^187936665216 is an apocalyptic number.

187936665216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

187936665216 is an abundant number, since it is smaller than the sum of its proper divisors (314059149984).

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

187936665216 is a wasteful number, since it uses less digits than its factorization.

187936665216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734377 (or 2734365 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 187936665216 in words is "one hundred eighty-seven billion, nine hundred thirty-six million, six hundred sixty-five thousand, two hundred sixteen".