37646655664673 has 16 divisors (see below), whose sum is σ = 41316237406080. Its totient is φ = 34018452518400.

The previous prime is 37646655664663. The next prime is 37646655664679.

37646655664673 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 37646655664673 - 2¹⁸ = 37646655402529 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 37646655664673.

It is not an unprimeable number, because it can be changed into a prime (37646655664679) 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, 577040 + ... + 8696337.

It is an arithmetic number, because the mean of its divisors is an integer number (2582264837880).

Almost surely, 2^{37646655664673} is an apocalyptic number.

It is an amenable number.

37646655664673 is a deficient number, since it is larger than the sum of its proper divisors (3669581741407).

37646655664673 is a wasteful number, since it uses less digits than its factorization.

37646655664673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275608.

The product of its digits is 8230118400, while the sum is 74.

The spelling of 37646655664673 in words is "thirty-seven trillion, six hundred forty-six billion, six hundred fifty-five million, six hundred sixty-four thousand, six hundred seventy-three".