667022099 has 4 divisors (see below), whose sum is σ = 668810736. Its totient is φ = 665233464.

The previous prime is 667022077. The next prime is 667022107. The reversal of 667022099 is 990220766.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 667022099 - 2¹² = 667018003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667022039) 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, 893759 + ... + 894504.

It is an arithmetic number, because the mean of its divisors is an integer number (167202684).

Almost surely, 2^667022099 is an apocalyptic number.

667022099 is a deficient number, since it is larger than the sum of its proper divisors (1788637).

667022099 is a wasteful number, since it uses less digits than its factorization.

667022099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788636.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 667022099 is about 25826.7709750948. The cubic root of 667022099 is about 873.7356865256.

The spelling of 667022099 in words is "six hundred sixty-seven million, twenty-two thousand, ninety-nine".