36631776653661 has 8 divisors (see below), whose sum is σ = 55819850138944. Its totient is φ = 20932443802080.

The previous prime is 36631776653653. The next prime is 36631776653699. The reversal of 36631776653661 is 16635667713663.

It is a happy number.

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

It is not a de Polignac number, because 36631776653661 - 2³ = 36631776653653 is a prime.

It is a super-2 number, since 2×36631776653661² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36631776653592 and 36631776653601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36631776653261) 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, 872185158400 + ... + 872185158441.

It is an arithmetic number, because the mean of its divisors is an integer number (6977481267368).

Almost surely, 2^{36631776653661} is an apocalyptic number.

It is an amenable number.

36631776653661 is a deficient number, since it is larger than the sum of its proper divisors (19188073485283).

36631776653661 is a wasteful number, since it uses less digits than its factorization.

36631776653661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744370316851.

The product of its digits is 308629440, while the sum is 66.

The spelling of 36631776653661 in words is "thirty-six trillion, six hundred thirty-one billion, seven hundred seventy-six million, six hundred fifty-three thousand, six hundred sixty-one".