166375374000 has 320 divisors, whose sum is σ = 596210554368. Its totient is φ = 39571584000.

The previous prime is 166375373981. The next prime is 166375374029. The reversal of 166375374000 is 473573661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3474219 + ... + 3521781.

Almost surely, 2^166375374000 is an apocalyptic number.

166375374000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166375374000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298105277184).

166375374000 is an abundant number, since it is smaller than the sum of its proper divisors (429835180368).

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

166375374000 is a wasteful number, since it uses less digits than its factorization.

166375374000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47653 (or 47637 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 166375374000 in words is "one hundred sixty-six billion, three hundred seventy-five million, three hundred seventy-four thousand".