166660996422 has 32 divisors (see below), whose sum is σ = 334070040960. Its totient is φ = 55429133760.

The previous prime is 166660996387. The next prime is 166660996427. The reversal of 166660996422 is 224699066661.

It is a happy number.

166660996422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166660996427) 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, 4894797 + ... + 4928727.

It is an arithmetic number, because the mean of its divisors is an integer number (10439688780).

Almost surely, 2^166660996422 is an apocalyptic number.

166660996422 is an abundant number, since it is smaller than the sum of its proper divisors (167409044538).

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

166660996422 is a wasteful number, since it uses less digits than its factorization.

166660996422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35748.

The product of its (nonzero) digits is 10077696, while the sum is 57.

The spelling of 166660996422 in words is "one hundred sixty-six billion, six hundred sixty million, nine hundred ninety-six thousand, four hundred twenty-two".