3661523523673 has 8 divisors (see below), whose sum is σ = 3681823066376. Its totient is φ = 3641224752000.

The previous prime is 3661523523599. The next prime is 3661523523709. The reversal of 3661523523673 is 3763253251663.

It can be written as a sum of positive squares in 4 ways, for example, as 625889841424 + 3035633682249 = 791132^2 + 1742307^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661523523673 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 3661523523673.

It is not an unprimeable number, because it can be changed into a prime (3661503523673) 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, 11187565 + ... + 11510197.

It is an arithmetic number, because the mean of its divisors is an integer number (460227883297).

Almost surely, 2^{3661523523673} is an apocalyptic number.

It is an amenable number.

3661523523673 is a deficient number, since it is larger than the sum of its proper divisors (20299542703).

3661523523673 is a wasteful number, since it uses less digits than its factorization.

3661523523673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385515.

The product of its digits is 12247200, while the sum is 52.

The spelling of 3661523523673 in words is "three trillion, six hundred sixty-one billion, five hundred twenty-three million, five hundred twenty-three thousand, six hundred seventy-three".