667746117631460 has 96 divisors (see below), whose sum is σ = 1672279432653312. Its totient is φ = 218986119982080.

The previous prime is 667746117631457. The next prime is 667746117631511. The reversal of 667746117631460 is 64136711647766.

It is a super-2 number, since 2×667746117631460² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567977840 + ... + 569152280.

It is an arithmetic number, because the mean of its divisors is an integer number (17419577423472).

Almost surely, 2^{667746117631460} is an apocalyptic number.

It is an amenable number.

667746117631460 is an abundant number, since it is smaller than the sum of its proper divisors (1004533315021852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667746117631460 is a wasteful number, since it uses less digits than its factorization.

667746117631460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351053 (or 1351051 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 65.

The spelling of 667746117631460 in words is "six hundred sixty-seven trillion, seven hundred forty-six billion, one hundred seventeen million, six hundred thirty-one thousand, four hundred sixty".