166461051 has 8 divisors (see below), whose sum is σ = 231598080. Its totient is φ = 106149032.

The previous prime is 166461023. The next prime is 166461067. The reversal of 166461051 is 150164661.

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

It is a cyclic number.

It is not a de Polignac number, because 166461051 - 2¹⁹ = 165936763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166461151) 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, 1206171 + ... + 1206308.

It is an arithmetic number, because the mean of its divisors is an integer number (28949760).

Almost surely, 2^166461051 is an apocalyptic number.

166461051 is a deficient number, since it is larger than the sum of its proper divisors (65137029).

166461051 is a wasteful number, since it uses less digits than its factorization.

166461051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412505.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 166461051 is about 12901.9785691963. The cubic root of 166461051 is about 550.0948056956.

It can be divided in two parts, 1664610 and 51, that added together give a palindrome (1664661).

The spelling of 166461051 in words is "one hundred sixty-six million, four hundred sixty-one thousand, fifty-one".