36664647325 has 6 divisors (see below), whose sum is σ = 45464162714. Its totient is φ = 29331717840.

The previous prime is 36664647287. The next prime is 36664647353. The reversal of 36664647325 is 52374646663.

It can be written as a sum of positive squares in 3 ways, for example, as 391921209 + 36272726116 = 19797^2 + 190454^2 .

It is not a de Polignac number, because 36664647325 - 2¹³ = 36664639133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 733292922 + ... + 733292971.

Almost surely, 2^36664647325 is an apocalyptic number.

It is an amenable number.

36664647325 is a deficient number, since it is larger than the sum of its proper divisors (8799515389).

36664647325 is a wasteful number, since it uses less digits than its factorization.

36664647325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466585903 (or 1466585898 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 52.

The spelling of 36664647325 in words is "thirty-six billion, six hundred sixty-four million, six hundred forty-seven thousand, three hundred twenty-five".