215416456356042 has 64 divisors (see below), whose sum is σ = 486514499040000. Its totient is φ = 70641904633344.

The previous prime is 215416456355999. The next prime is 215416456356067. The reversal of 215416456356042 is 240653654614512.

215416456356042 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 16 + 4 + 5 + 63 + 560 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 215416456356042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111662703 + ... + 113575490.

It is an arithmetic number, because the mean of its divisors is an integer number (7601789047500).

Almost surely, 2^{215416456356042} is an apocalyptic number.

215416456356042 is an abundant number, since it is smaller than the sum of its proper divisors (271098042683958).

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

215416456356042 is a wasteful number, since it uses less digits than its factorization.

215416456356042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225238492 (or 225238486 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 215416456356042 in words is "two hundred fifteen trillion, four hundred sixteen billion, four hundred fifty-six million, three hundred fifty-six thousand, forty-two".