13166690 has 8 divisors (see below), whose sum is σ = 23700060. Its totient is φ = 5266672.

The previous prime is 13166669. The next prime is 13166701. The reversal of 13166690 is 9666131.

It can be written as a sum of positive squares in 2 ways, for example, as 12411529 + 755161 = 3523^2 + 869^2 .

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

It is a super-2 number, since 2×13166690² = 346723451112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658325 + ... + 658344.

Almost surely, 2^13166690 is an apocalyptic number.

13166690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13166690 is a deficient number, since it is larger than the sum of its proper divisors (10533370).

13166690 is a wasteful number, since it uses less digits than its factorization.

13166690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316676.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 13166690 is about 3628.5933913846. The cubic root of 13166690 is about 236.1341882660.

The spelling of 13166690 in words is "thirteen million, one hundred sixty-six thousand, six hundred ninety".