36522121661 has 8 divisors (see below), whose sum is σ = 36741513600. Its totient is φ = 36303349680.

The previous prime is 36522121639. The next prime is 36522121673. The reversal of 36522121661 is 16612122563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36522121661 - 2¹⁰ = 36522120637 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 (36522921661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36545 + ... + 272726.

It is an arithmetic number, because the mean of its divisors is an integer number (4592689200).

Almost surely, 2^36522121661 is an apocalyptic number.

It is an amenable number.

36522121661 is a deficient number, since it is larger than the sum of its proper divisors (219391939).

36522121661 is a wasteful number, since it uses less digits than its factorization.

36522121661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309979.

The product of its digits is 25920, while the sum is 35.

The spelling of 36522121661 in words is "thirty-six billion, five hundred twenty-two million, one hundred twenty-one thousand, six hundred sixty-one".