215942612416 has 14 divisors (see below), whose sum is σ = 428511121640. Its totient is φ = 107971306176.

The previous prime is 215942612399. The next prime is 215942612419. The reversal of 215942612416 is 614216249512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215942612419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1687051596 + ... + 1687051723.

It is an arithmetic number, because the mean of its divisors is an integer number (30607937260).

Almost surely, 2^215942612416 is an apocalyptic number.

It is an amenable number.

215942612416 is a deficient number, since it is larger than the sum of its proper divisors (212568509224).

215942612416 is an equidigital number, since it uses as much as digits as its factorization.

215942612416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374103331 (or 3374103321 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 215942612416 in words is "two hundred fifteen billion, nine hundred forty-two million, six hundred twelve thousand, four hundred sixteen".