667474410017406 has 16 divisors (see below), whose sum is σ = 1334949893827200. Its totient is φ = 222491291040408.

The previous prime is 667474410017399. The next prime is 667474410017489. The reversal of 667474410017406 is 604710014474766.

It is a super-2 number, since 2×667474410017406² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 36544986 + ... + 51676733.

It is an arithmetic number, because the mean of its divisors is an integer number (83434368364200).

Almost surely, 2^{667474410017406} is an apocalyptic number.

667474410017406 is an abundant number, since it is smaller than the sum of its proper divisors (667475483809794).

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

667474410017406 is a wasteful number, since it uses less digits than its factorization.

667474410017406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89482703.

The product of its (nonzero) digits is 18966528, while the sum is 57.

The spelling of 667474410017406 in words is "six hundred sixty-seven trillion, four hundred seventy-four billion, four hundred ten million, seventeen thousand, four hundred six".