166616346 has 16 divisors (see below), whose sum is σ = 358866144. Its totient is φ = 51266544.

The previous prime is 166616323. The next prime is 166616399. The reversal of 166616346 is 643616661.

It is a super-2 number, since 2×166616346² = 55522013508783432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067976 + ... + 1068131.

It is an arithmetic number, because the mean of its divisors is an integer number (22429134).

Almost surely, 2^166616346 is an apocalyptic number.

166616346 is an abundant number, since it is smaller than the sum of its proper divisors (192249798).

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

166616346 is a wasteful number, since it uses less digits than its factorization.

166616346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136125.

The product of its digits is 93312, while the sum is 39.

The square root of 166616346 is about 12907.9954291904. The cubic root of 166616346 is about 550.2658175140.

The spelling of 166616346 in words is "one hundred sixty-six million, six hundred sixteen thousand, three hundred forty-six".