667255752537 has 16 divisors (see below), whose sum is σ = 1004021196480. Its totient is φ = 390452686400.

The previous prime is 667255752529. The next prime is 667255752539. The reversal of 667255752537 is 735257552766.

It is a cyclic number.

It is not a de Polignac number, because 667255752537 - 2³ = 667255752529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667255752539) 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, 348617514 + ... + 348619427.

It is an arithmetic number, because the mean of its divisors is an integer number (62751324780).

Almost surely, 2^667255752537 is an apocalyptic number.

It is an amenable number.

667255752537 is a deficient number, since it is larger than the sum of its proper divisors (336765443943).

667255752537 is a wasteful number, since it uses less digits than its factorization.

667255752537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697236984.

The product of its digits is 92610000, while the sum is 60.

The spelling of 667255752537 in words is "six hundred sixty-seven billion, two hundred fifty-five million, seven hundred fifty-two thousand, five hundred thirty-seven".