667674347461 has 16 divisors (see below), whose sum is σ = 739987776000. Its totient is φ = 597371630400.

The previous prime is 667674347443. The next prime is 667674347477. The reversal of 667674347461 is 164743476766.

It is a cyclic number.

It is not a de Polignac number, because 667674347461 - 2⁹ = 667674346949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667674347461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667674347861) 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, 1690005 + ... + 2047306.

It is an arithmetic number, because the mean of its divisors is an integer number (46249236000).

Almost surely, 2^667674347461 is an apocalyptic number.

It is an amenable number.

667674347461 is a deficient number, since it is larger than the sum of its proper divisors (72313428539).

667674347461 is a wasteful number, since it uses less digits than its factorization.

667674347461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737580.

The product of its digits is 85349376, while the sum is 61.

The spelling of 667674347461 in words is "six hundred sixty-seven billion, six hundred seventy-four million, three hundred forty-seven thousand, four hundred sixty-one".