16666741 has 8 divisors (see below), whose sum is σ = 20513024. Its totient is φ = 13186800.

The previous prime is 16666711. The next prime is 16666799. The reversal of 16666741 is 14766661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16666741 - 2²¹ = 14569589 is a prime.

It is a super-2 number, since 2×16666741² = 555560511122162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16666741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666711) 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, 91485 + ... + 91666.

It is an arithmetic number, because the mean of its divisors is an integer number (2564128).

Almost surely, 2^16666741 is an apocalyptic number.

It is an amenable number.

16666741 is a deficient number, since it is larger than the sum of its proper divisors (3846283).

16666741 is a wasteful number, since it uses less digits than its factorization.

16666741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183171.

The product of its digits is 36288, while the sum is 37.

The square root of 16666741 is about 4082.4920085654. The cubic root of 16666741 is about 255.4368572128.

The spelling of 16666741 in words is "sixteen million, six hundred sixty-six thousand, seven hundred forty-one".