166172050 has 48 divisors (see below), whose sum is σ = 338442624. Its totient is φ = 60200000.

The previous prime is 166172047. The next prime is 166172053. The reversal of 166172050 is 50271661.

It is an interprime number because it is at equal distance from previous prime (166172047) and next prime (166172053).

It is a super-2 number, since 2×166172050² = 55226300402405000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166172053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236700 + ... + 237400.

It is an arithmetic number, because the mean of its divisors is an integer number (7050888).

Almost surely, 2^166172050 is an apocalyptic number.

166172050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166172050 is an abundant number, since it is smaller than the sum of its proper divisors (172270574).

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

166172050 is a wasteful number, since it uses less digits than its factorization.

166172050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 166172050 is about 12890.7738324741. The cubic root of 166172050 is about 549.7762726416.

The spelling of 166172050 in words is "one hundred sixty-six million, one hundred seventy-two thousand, fifty".