667036667 has 48 divisors (see below), whose sum is σ = 836456544. Its totient is φ = 525312000.

The previous prime is 667036663. The next prime is 667036679. The reversal of 667036667 is 766630766.

It is not a de Polignac number, because 667036667 - 2² = 667036663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667036661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2767667 + ... + 2767907.

It is an arithmetic number, because the mean of its divisors is an integer number (17426178).

Almost surely, 2^667036667 is an apocalyptic number.

667036667 is a deficient number, since it is larger than the sum of its proper divisors (169419877).

667036667 is a wasteful number, since it uses less digits than its factorization.

667036667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 47.

The square root of 667036667 is about 25827.0530064891. The cubic root of 667036667 is about 873.7420473787.

The spelling of 667036667 in words is "six hundred sixty-seven million, thirty-six thousand, six hundred sixty-seven".