166415630544612 has 72 divisors (see below), whose sum is σ = 426449389711800. Its totient is φ = 54708759037440.

The previous prime is 166415630544529. The next prime is 166415630544641. The reversal of 166415630544612 is 216445036514661.

166415630544612 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 1 + 5 + 6 + 30 + 544 + 61 + 2 = 666.

166415630544612 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 107668556311716 + 58747074232896 = 10376346^2 + 7664664^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42871014 + ... + 46591362.

Almost surely, 2^{166415630544612} is an apocalyptic number.

166415630544612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166415630544612 is an abundant number, since it is smaller than the sum of its proper divisors (260033759167188).

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

166415630544612 is a wasteful number, since it uses less digits than its factorization.

166415630544612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737453 (or 3737448 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 166415630544612 in words is "one hundred sixty-six trillion, four hundred fifteen billion, six hundred thirty million, five hundred forty-four thousand, six hundred twelve".