16740655 has 4 divisors (see below), whose sum is σ = 20088792. Its totient is φ = 13392520.

The previous prime is 16740641. The next prime is 16740667. The reversal of 16740655 is 55604761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55604761 = 307 ⋅181123.

It is not a de Polignac number, because 16740655 - 2⁵ = 16740623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16740655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674061 + ... + 1674070.

It is an arithmetic number, because the mean of its divisors is an integer number (5022198).

Almost surely, 2^16740655 is an apocalyptic number.

16740655 is a deficient number, since it is larger than the sum of its proper divisors (3348137).

16740655 is an equidigital number, since it uses as much as digits as its factorization.

16740655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348136.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 16740655 is about 4091.5345531964. The cubic root of 16740655 is about 255.8139058931.

The spelling of 16740655 in words is "sixteen million, seven hundred forty thousand, six hundred fifty-five".