166370990967936 has 1280 divisors, whose sum is σ = 540879409889280. Its totient is φ = 50610852864000.

The previous prime is 166370990967887. The next prime is 166370990967947. The reversal of 166370990967936 is 639769099073661.

166370990967936 is a `hidden beast` number, since 1 + 6 + 6 + 370 + 9 + 90 + 96 + 79 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 330757437061 + ... + 330757437563.

It is an arithmetic number, because the mean of its divisors is an integer number (422562038976).

Almost surely, 2^{166370990967936} is an apocalyptic number.

166370990967936 is a gapful number since it is divisible by the number (16) 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 166370990967936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270439704944640).

166370990967936 is an abundant number, since it is smaller than the sum of its proper divisors (374508418921344).

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

166370990967936 is a wasteful number, since it uses less digits than its factorization.

166370990967936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 3749847696, while the sum is 81.

The spelling of 166370990967936 in words is "one hundred sixty-six trillion, three hundred seventy billion, nine hundred ninety million, nine hundred sixty-seven thousand, nine hundred thirty-six".