16066742645637 has 40 divisors (see below), whose sum is σ = 24776830425600. Its totient is φ = 10364941660320.

The previous prime is 16066742645621. The next prime is 16066742645651. The reversal of 16066742645637 is 73654624766061.

16066742645637 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 6 + 7 + 4 + 2 + 64 + 563 + 7 = 666.

It is not a de Polignac number, because 16066742645637 - 2⁴ = 16066742645621 is a prime.

It is a super-2 number, since 2×16066742645637² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066742645617) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38418739 + ... + 38834687.

It is an arithmetic number, because the mean of its divisors is an integer number (619420760640).

Almost surely, 2^{16066742645637} is an apocalyptic number.

It is an amenable number.

16066742645637 is a deficient number, since it is larger than the sum of its proper divisors (8710087779963).

16066742645637 is a wasteful number, since it uses less digits than its factorization.

16066742645637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431375 (or 431366 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 63.

The spelling of 16066742645637 in words is "sixteen trillion, sixty-six billion, seven hundred forty-two million, six hundred forty-five thousand, six hundred thirty-seven".