16124661 has 12 divisors (see below), whose sum is σ = 26618592. Its totient is φ = 9214056.

The previous prime is 16124651. The next prime is 16124663. The reversal of 16124661 is 16642161.

16124661 is a `hidden beast` number, since 1 + 612 + 46 + 6 + 1 = 666.

It is not a de Polignac number, because 16124661 - 2⁵ = 16124629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16124663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127911 + ... + 128036.

It is an arithmetic number, because the mean of its divisors is an integer number (2218216).

Almost surely, 2^16124661 is an apocalyptic number.

It is an amenable number.

16124661 is a deficient number, since it is larger than the sum of its proper divisors (10493931).

16124661 is a wasteful number, since it uses less digits than its factorization.

16124661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255960 (or 255957 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16124661 is about 4015.5523903941. The cubic root of 16124661 is about 252.6369469186.

The spelling of 16124661 in words is "sixteen million, one hundred twenty-four thousand, six hundred sixty-one".