667487053137 has 8 divisors (see below), whose sum is σ = 890203757536. Its totient is φ = 444880858752.

The previous prime is 667487053091. The next prime is 667487053139. The reversal of 667487053137 is 731350784766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 667487053137 - 2²⁴ = 667470275921 is a prime.

It is a super-2 number, since 2×667487053137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667487053139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27613408 + ... + 27637569.

It is an arithmetic number, because the mean of its divisors is an integer number (111275469692).

Almost surely, 2^667487053137 is an apocalyptic number.

It is an amenable number.

667487053137 is a deficient number, since it is larger than the sum of its proper divisors (222716704399).

667487053137 is a wasteful number, since it uses less digits than its factorization.

667487053137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55255007.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 667487053137 in words is "six hundred sixty-seven billion, four hundred eighty-seven million, fifty-three thousand, one hundred thirty-seven".