667038384435 has 24 divisors (see below), whose sum is σ = 1087778435184. Its totient is φ = 349041447040.

The previous prime is 667038384427. The next prime is 667038384457. The reversal of 667038384435 is 534483830766.

It is not a de Polignac number, because 667038384435 - 2³ = 667038384427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7873356 + ... + 7957625.

It is an arithmetic number, because the mean of its divisors is an integer number (45324101466).

Almost surely, 2^667038384435 is an apocalyptic number.

667038384435 is a deficient number, since it is larger than the sum of its proper divisors (420740050749).

667038384435 is a wasteful number, since it uses less digits than its factorization.

667038384435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15831095 (or 15831042 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 57.

The spelling of 667038384435 in words is "six hundred sixty-seven billion, thirty-eight million, three hundred eighty-four thousand, four hundred thirty-five".