216706294400380 has 12 divisors (see below), whose sum is σ = 455083218240840. Its totient is φ = 86682517760144.

The previous prime is 216706294400371. The next prime is 216706294400503. The reversal of 216706294400380 is 83004492607612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5417657359990 + ... + 5417657360029.

It is an arithmetic number, because the mean of its divisors is an integer number (37923601520070).

Almost surely, 2^{216706294400380} is an apocalyptic number.

216706294400380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216706294400380 is an abundant number, since it is smaller than the sum of its proper divisors (238376923840460).

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

216706294400380 is a wasteful number, since it uses less digits than its factorization.

216706294400380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10835314720028 (or 10835314720026 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 216706294400380 in words is "two hundred sixteen trillion, seven hundred six billion, two hundred ninety-four million, four hundred thousand, three hundred eighty".