36635301746221 has 4 divisors (see below), whose sum is σ = 36635315363452. Its totient is φ = 36635288128992.

The previous prime is 36635301746201. The next prime is 36635301746231. The reversal of 36635301746221 is 12264710353663.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13948275398121 + 22687026348100 = 3734739^2 + 4763090^2 .

It is a cyclic number.

It is not a de Polignac number, because 36635301746221 - 2⁹ = 36635301745709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36635301746201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272696 + ... + 8653921.

It is an arithmetic number, because the mean of its divisors is an integer number (9158828840863).

Almost surely, 2^{36635301746221} is an apocalyptic number.

It is an amenable number.

36635301746221 is a deficient number, since it is larger than the sum of its proper divisors (13617231).

36635301746221 is an equidigital number, since it uses as much as digits as its factorization.

36635301746221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617230.

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 36635301746221 in words is "thirty-six trillion, six hundred thirty-five billion, three hundred one million, seven hundred forty-six thousand, two hundred twenty-one".