166051065 has 8 divisors (see below), whose sum is σ = 265681728. Its totient is φ = 88560560.

The previous prime is 166051063. The next prime is 166051069. The reversal of 166051065 is 560150661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166051065 - 2¹ = 166051063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166051063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5535021 + ... + 5535050.

It is an arithmetic number, because the mean of its divisors is an integer number (33210216).

Almost surely, 2^166051065 is an apocalyptic number.

166051065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166051065 is a deficient number, since it is larger than the sum of its proper divisors (99630663).

166051065 is a wasteful number, since it uses less digits than its factorization.

166051065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070079.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 166051065 is about 12886.0802806750. The cubic root of 166051065 is about 549.6428149164.

It can be divided in two parts, 1660 and 51065, that added together give a palindrome (52725).

The spelling of 166051065 in words is "one hundred sixty-six million, fifty-one thousand, sixty-five".