667214537420 has 24 divisors (see below), whose sum is σ = 1401179943744. Its totient is φ = 266880212096.

The previous prime is 667214537411. The next prime is 667214537443. The reversal of 667214537420 is 24735412766.

667214537420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703664 + ... + 1352616.

It is an arithmetic number, because the mean of its divisors is an integer number (58382497656).

Almost surely, 2^667214537420 is an apocalyptic number.

It is an amenable number.

667214537420 is an abundant number, since it is smaller than the sum of its proper divisors (733965406324).

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

667214537420 is a wasteful number, since it uses less digits than its factorization.

667214537420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700369 (or 700367 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 667214537420 in words is "six hundred sixty-seven billion, two hundred fourteen million, five hundred thirty-seven thousand, four hundred twenty".