667667850366 has 32 divisors (see below), whose sum is σ = 1456814030976. Its totient is φ = 202311900000.

The previous prime is 667667850329. The next prime is 667667850371. The reversal of 667667850366 is 663058766766.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 667667850297 and 667667850306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894816 + ... + 1461516.

It is an arithmetic number, because the mean of its divisors is an integer number (45525438468).

Almost surely, 2^667667850366 is an apocalyptic number.

667667850366 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

667667850366 is an abundant number, since it is smaller than the sum of its proper divisors (789146180610).

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

667667850366 is a wasteful number, since it uses less digits than its factorization.

667667850366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584568.

The product of its (nonzero) digits is 274337280, while the sum is 66.

The spelling of 667667850366 in words is "six hundred sixty-seven billion, six hundred sixty-seven million, eight hundred fifty thousand, three hundred sixty-six".