168815007 has 6 divisors (see below), whose sum is σ = 243843912. Its totient is φ = 112543332.

The previous prime is 168814993. The next prime is 168815011. The reversal of 168815007 is 700518861.

It is not a de Polignac number, because 168815007 - 2⁴ = 168814991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168815047) 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 in 5 ways as a sum of consecutive naturals, for example, 9378603 + ... + 9378620.

It is an arithmetic number, because the mean of its divisors is an integer number (40640652).

Almost surely, 2^168815007 is an apocalyptic number.

168815007 is a deficient number, since it is larger than the sum of its proper divisors (75028905).

168815007 is a wasteful number, since it uses less digits than its factorization.

168815007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18757229 (or 18757226 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 168815007 is about 12992.8829364387. The cubic root of 168815007 is about 552.6756750449.

The spelling of 168815007 in words is "one hundred sixty-eight million, eight hundred fifteen thousand, seven".