166379270 has 32 divisors (see below), whose sum is σ = 307229760. Its totient is φ = 64852480.

The previous prime is 166379249. The next prime is 166379273. The reversal of 166379270 is 72973661.

It is a super-2 number, since 2×166379270² = 55364122971465800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166379273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61874 + ... + 64506.

It is an arithmetic number, because the mean of its divisors is an integer number (9600930).

Almost surely, 2^166379270 is an apocalyptic number.

166379270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166379270 is the 10532-nd pentagonal number.

166379270 is a deficient number, since it is larger than the sum of its proper divisors (140850490).

166379270 is a wasteful number, since it uses less digits than its factorization.

166379270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 166379270 is about 12898.8088597358. The cubic root of 166379270 is about 550.0047051939.

The spelling of 166379270 in words is "one hundred sixty-six million, three hundred seventy-nine thousand, two hundred seventy".