166308647232 has 672 divisors, whose sum is σ = 575295938560. Its totient is φ = 41244733440.

The previous prime is 166308647213. The next prime is 166308647249. The reversal of 166308647232 is 232746803661.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×166308647232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1196465019 + ... + 1196465157.

Almost surely, 2^166308647232 is an apocalyptic number.

166308647232 is a gapful number since it is divisible by the number (12) 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 166308647232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287647969280).

166308647232 is an abundant number, since it is smaller than the sum of its proper divisors (408987291328).

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

166308647232 is a wasteful number, since it uses less digits than its factorization.

166308647232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 166308647232 in words is "one hundred sixty-six billion, three hundred eight million, six hundred forty-seven thousand, two hundred thirty-two".