166697954448 has 80 divisors (see below), whose sum is σ = 433411593216. Its totient is φ = 55208200320.

The previous prime is 166697954441. The next prime is 166697954491. The reversal of 166697954448 is 844459796661.

It is not an unprimeable number, because it can be changed into a prime (166697954441) 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, 28141215 + ... + 28147137.

Almost surely, 2^166697954448 is an apocalyptic number.

It is an amenable number.

166697954448 is an abundant number, since it is smaller than the sum of its proper divisors (266713638768).

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

166697954448 is a wasteful number, since it uses less digits than its factorization.

166697954448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9612 (or 9606 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 69.

The spelling of 166697954448 in words is "one hundred sixty-six billion, six hundred ninety-seven million, nine hundred fifty-four thousand, four hundred forty-eight".