16696690 has 16 divisors (see below), whose sum is σ = 30292992. Its totient is φ = 6625584.

The previous prime is 16696681. The next prime is 16696699. The reversal of 16696690 is 9669661.

It is an interprime number because it is at equal distance from previous prime (16696681) and next prime (16696699).

It is a super-2 number, since 2×16696690² = 557558913912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16696699) 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, 5304 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (1893312).

Almost surely, 2^16696690 is an apocalyptic number.

16696690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16696690 is a deficient number, since it is larger than the sum of its proper divisors (13596302).

16696690 is a wasteful number, since it uses less digits than its factorization.

16696690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13281.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 16696690 is about 4086.1583425022. The cubic root of 16696690 is about 255.5897665465.

The spelling of 16696690 in words is "sixteen million, six hundred ninety-six thousand, six hundred ninety".