16677541 has 4 divisors (see below), whose sum is σ = 16690284. Its totient is φ = 16664800.

The previous prime is 16677533. The next prime is 16677559. The reversal of 16677541 is 14577661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13176900 + 3500641 = 3630^2 + 1871^2 .

It is a cyclic number.

It is not a de Polignac number, because 16677541 - 2³ = 16677533 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 16677541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4150 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (4172571).

Almost surely, 2^16677541 is an apocalyptic number.

It is an amenable number.

16677541 is a deficient number, since it is larger than the sum of its proper divisors (12743).

16677541 is a wasteful number, since it uses less digits than its factorization.

16677541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742.

The product of its digits is 35280, while the sum is 37.

The square root of 16677541 is about 4083.8145158663. The cubic root of 16677541 is about 255.4920194147.

The spelling of 16677541 in words is "sixteen million, six hundred seventy-seven thousand, five hundred forty-one".