167215647007 has 4 divisors (see below), whose sum is σ = 171734988856. Its totient is φ = 162696305160.

The previous prime is 167215646989. The next prime is 167215647017. The reversal of 167215647007 is 700746512761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167215647007 is a prime.

It is a super-2 number, since 2×167215647007² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167215647017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2259670869 + ... + 2259670942.

It is an arithmetic number, because the mean of its divisors is an integer number (42933747214).

Almost surely, 2^167215647007 is an apocalyptic number.

167215647007 is a deficient number, since it is larger than the sum of its proper divisors (4519341849).

167215647007 is an equidigital number, since it uses as much as digits as its factorization.

167215647007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519341848.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 167215647007 in words is "one hundred sixty-seven billion, two hundred fifteen million, six hundred forty-seven thousand, seven".