36665774021529 has 15 divisors (see below), whose sum is σ = 54772410503173. Its totient is φ = 24443813016324.

The previous prime is 36665774021497. The next prime is 36665774021563. The reversal of 36665774021529 is 92512047756663.

The square root of 36665774021529 is 6055227.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 36665774021529 - 2⁵ = 36665774021497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36665774022529) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 54160642 + ... + 54833444.

Almost surely, 2^{36665774021529} is an apocalyptic number.

36665774021529 is the 6055227-th square number.

36665774021529 is the 3027614-th centered octagonal number.

It is an amenable number.

36665774021529 is a deficient number, since it is larger than the sum of its proper divisors (18106636481644).

36665774021529 is an frugal number, since it uses more digits than its factorization.

36665774021529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345618 (or 672806 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 63.

The spelling of 36665774021529 in words is "thirty-six trillion, six hundred sixty-five billion, seven hundred seventy-four million, twenty-one thousand, five hundred twenty-nine".