36353156221 has 2 divisors, whose sum is σ = 36353156222. Its totient is φ = 36353156220.

The previous prime is 36353156183. The next prime is 36353156239. The reversal of 36353156221 is 12265135363.

36353156221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28903740121 + 7449416100 = 170011^2 + 86310^2 .

It is a cyclic number.

It is not a de Polignac number, because 36353156221 - 2²⁷ = 36218938493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36353156261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18176578110 + 18176578111.

It is an arithmetic number, because the mean of its divisors is an integer number (18176578111).

Almost surely, 2^36353156221 is an apocalyptic number.

It is an amenable number.

36353156221 is a deficient number, since it is larger than the sum of its proper divisors (1).

36353156221 is an equidigital number, since it uses as much as digits as its factorization.

36353156221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The spelling of 36353156221 in words is "thirty-six billion, three hundred fifty-three million, one hundred fifty-six thousand, two hundred twenty-one".