16680741 has 16 divisors (see below), whose sum is σ = 27729408. Its totient is φ = 8665200.

The previous prime is 16680739. The next prime is 16680751. The reversal of 16680741 is 14708661.

It is a happy number.

It is not a de Polignac number, because 16680741 - 2¹ = 16680739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35875 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (1733088).

Almost surely, 2^16680741 is an apocalyptic number.

16680741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16680741 is a deficient number, since it is larger than the sum of its proper divisors (11048667).

16680741 is a wasteful number, since it uses less digits than its factorization.

16680741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72232.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 16680741 is about 4084.2062876402. The cubic root of 16680741 is about 255.5083591972.

The spelling of 16680741 in words is "sixteen million, six hundred eighty thousand, seven hundred forty-one".