36364515661 has 8 divisors (see below), whose sum is σ = 37658029464. Its totient is φ = 35093497920.

The previous prime is 36364515647. The next prime is 36364515689. The reversal of 36364515661 is 16651546363.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2165040900 + 34199474761 = 46530^2 + 184931^2 .

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 36364515661 - 2¹¹ = 36364513613 is a prime.

It is a super-2 number, since 2×36364515661² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36364515641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5620726 + ... + 5627191.

It is an arithmetic number, because the mean of its divisors is an integer number (4707253683).

Almost surely, 2^36364515661 is an apocalyptic number.

It is an amenable number.

36364515661 is a deficient number, since it is larger than the sum of its proper divisors (1293513803).

36364515661 is a wasteful number, since it uses less digits than its factorization.

36364515661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11248031.

The product of its digits is 1166400, while the sum is 46.

The spelling of 36364515661 in words is "thirty-six billion, three hundred sixty-four million, five hundred fifteen thousand, six hundred sixty-one".