667782542662 has 32 divisors (see below), whose sum is σ = 1059103872000. Its totient is φ = 315138403008.

The previous prime is 667782542549. The next prime is 667782542681. The reversal of 667782542662 is 266245287766.

It is a self number, because there is not a number n which added to its sum of digits gives 667782542662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5966089 + ... + 6076987.

It is an arithmetic number, because the mean of its divisors is an integer number (33096996000).

Almost surely, 2^667782542662 is an apocalyptic number.

667782542662 is a deficient number, since it is larger than the sum of its proper divisors (391321329338).

667782542662 is a wasteful number, since it uses less digits than its factorization.

667782542662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112660.

The product of its digits is 81285120, while the sum is 61.

The spelling of 667782542662 in words is "six hundred sixty-seven billion, seven hundred eighty-two million, five hundred forty-two thousand, six hundred sixty-two".