215716117067 has 12 divisors (see below), whose sum is σ = 237120768360. Its totient is φ = 196096200960.

The previous prime is 215716117063. The next prime is 215716117073. The reversal of 215716117067 is 760711617512.

It is not a de Polignac number, because 215716117067 - 2² = 215716117063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215716117063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4490984 + ... + 4538762.

It is an arithmetic number, because the mean of its divisors is an integer number (19760064030).

Almost surely, 2^215716117067 is an apocalyptic number.

215716117067 is a deficient number, since it is larger than the sum of its proper divisors (21404651293).

215716117067 is a wasteful number, since it uses less digits than its factorization.

215716117067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85114 (or 85103 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 44.

The spelling of 215716117067 in words is "two hundred fifteen billion, seven hundred sixteen million, one hundred seventeen thousand, sixty-seven".