36166303621 has 12 divisors (see below), whose sum is σ = 42222902988. Its totient is φ = 30887764992.

The previous prime is 36166303619. The next prime is 36166303639. The reversal of 36166303621 is 12630366163.

It can be written as a sum of positive squares in 2 ways, for example, as 2556414721 + 33609888900 = 50561^2 + 183330^2 .

It is not a de Polignac number, because 36166303621 - 2¹ = 36166303619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36166343621) 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, 1318716 + ... + 1345861.

It is an arithmetic number, because the mean of its divisors is an integer number (3518575249).

Almost surely, 2^36166303621 is an apocalyptic number.

It is an amenable number.

36166303621 is a deficient number, since it is larger than the sum of its proper divisors (6056599367).

36166303621 is a wasteful number, since it uses less digits than its factorization.

36166303621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664868 (or 2664861 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

Adding to 36166303621 its reverse (12630366163), we get a palindrome (48796669784).

The spelling of 36166303621 in words is "thirty-six billion, one hundred sixty-six million, three hundred three thousand, six hundred twenty-one".