667670588049 has 16 divisors (see below), whose sum is σ = 923483877120. Its totient is φ = 428760359040.

The previous prime is 667670588021. The next prime is 667670588059. The reversal of 667670588049 is 940885076766.

It is not a de Polignac number, because 667670588049 - 2⁹ = 667670587537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667670588009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34346082 + ... + 34365515.

It is an arithmetic number, because the mean of its divisors is an integer number (57717742320).

Almost surely, 2^667670588049 is an apocalyptic number.

It is an amenable number.

667670588049 is a deficient number, since it is larger than the sum of its proper divisors (255813289071).

667670588049 is a wasteful number, since it uses less digits than its factorization.

667670588049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68711720.

The product of its (nonzero) digits is 121927680, while the sum is 66.

The spelling of 667670588049 in words is "six hundred sixty-seven billion, six hundred seventy million, five hundred eighty-eight thousand, forty-nine".