166122261054612 has 96 divisors (see below), whose sum is σ = 434645955497600. Its totient is φ = 54865139809536.

The previous prime is 166122261054587. The next prime is 166122261054619. The reversal of 166122261054612 is 216450162221661.

166122261054612 is a `hidden beast` number, since 1 + 6 + 6 + 1 + 2 + 2 + 26 + 1 + 0 + 5 + 4 + 612 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166122261054619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1269274008 + ... + 1269404880.

Almost surely, 2^{166122261054612} is an apocalyptic number.

166122261054612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166122261054612 is an abundant number, since it is smaller than the sum of its proper divisors (268523694442988).

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

166122261054612 is a wasteful number, since it uses less digits than its factorization.

166122261054612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238822 (or 238814 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 166122261054612 in words is "one hundred sixty-six trillion, one hundred twenty-two billion, two hundred sixty-one million, fifty-four thousand, six hundred twelve".