36616342621 has 2 divisors, whose sum is σ = 36616342622. Its totient is φ = 36616342620.

The previous prime is 36616342603. The next prime is 36616342649. The reversal of 36616342621 is 12624361663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34247573721 + 2368768900 = 185061^2 + 48670^2 .

It is a cyclic number.

It is not a de Polignac number, because 36616342621 - 2¹⁵ = 36616309853 is a prime.

It is a super-2 number, since 2×36616342621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36616342661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18308171310 + 18308171311.

It is an arithmetic number, because the mean of its divisors is an integer number (18308171311).

Almost surely, 2^36616342621 is an apocalyptic number.

It is an amenable number.

36616342621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36616342621 is an equidigital number, since it uses as much as digits as its factorization.

36616342621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The spelling of 36616342621 in words is "thirty-six billion, six hundred sixteen million, three hundred forty-two thousand, six hundred twenty-one".