166516217150 has 24 divisors (see below), whose sum is σ = 317274318144. Its totient is φ = 64981937600.

The previous prime is 166516217123. The next prime is 166516217159. The reversal of 166516217150 is 51712615661.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 166516217098 and 166516217107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166516217159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40611662 + ... + 40615761.

It is an arithmetic number, because the mean of its divisors is an integer number (13219763256).

Almost surely, 2^166516217150 is an apocalyptic number.

166516217150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166516217150 is a deficient number, since it is larger than the sum of its proper divisors (150758100994).

166516217150 is a wasteful number, since it uses less digits than its factorization.

166516217150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81227476 (or 81227471 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 166516217150 in words is "one hundred sixty-six billion, five hundred sixteen million, two hundred seventeen thousand, one hundred fifty".