16616740 has 24 divisors (see below), whose sum is σ = 39880512. Its totient is φ = 5697120.

The previous prime is 16616731. The next prime is 16616759. The reversal of 16616740 is 4761661.

It is a super-2 number, since 2×16616740² = 552232096455200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59206 + ... + 59485.

It is an arithmetic number, because the mean of its divisors is an integer number (1661688).

Almost surely, 2^16616740 is an apocalyptic number.

16616740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16616740 is an abundant number, since it is smaller than the sum of its proper divisors (23263772).

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

16616740 is a wasteful number, since it uses less digits than its factorization.

16616740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118707 (or 118705 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16616740 is about 4076.3635755413. The cubic root of 16616740 is about 255.1811605148.

The spelling of 16616740 in words is "sixteen million, six hundred sixteen thousand, seven hundred forty".