166445136364 has 12 divisors (see below), whose sum is σ = 313685064784. Its totient is φ = 76820832144.

The previous prime is 166445136337. The next prime is 166445136371. The reversal of 166445136364 is 463631544661.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600433952 + ... + 1600434055.

Almost surely, 2^166445136364 is an apocalyptic number.

It is an amenable number.

166445136364 is a deficient number, since it is larger than the sum of its proper divisors (147239928420).

166445136364 is a wasteful number, since it uses less digits than its factorization.

166445136364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200868024 (or 3200868022 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 49.

The spelling of 166445136364 in words is "one hundred sixty-six billion, four hundred forty-five million, one hundred thirty-six thousand, three hundred sixty-four".