36550552146421 has 2 divisors, whose sum is σ = 36550552146422. Its totient is φ = 36550552146420.

The previous prime is 36550552146419. The next prime is 36550552146469. The reversal of 36550552146421 is 12464125505563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18489879600196 + 18060672546225 = 4299986^2 + 4249785^2 .

It is a cyclic number.

It is not a de Polignac number, because 36550552146421 - 2¹ = 36550552146419 is a prime.

Together with 36550552146419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36550552546421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18275276073210 + 18275276073211.

It is an arithmetic number, because the mean of its divisors is an integer number (18275276073211).

Almost surely, 2^{36550552146421} is an apocalyptic number.

It is an amenable number.

36550552146421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36550552146421 is an equidigital number, since it uses as much as digits as its factorization.

36550552146421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 36550552146421 in words is "thirty-six trillion, five hundred fifty billion, five hundred fifty-two million, one hundred forty-six thousand, four hundred twenty-one".