36561121432415 has 8 divisors (see below), whose sum is σ = 43982755561008. Its totient is φ = 29175957251200.

The previous prime is 36561121432361. The next prime is 36561121432417. The reversal of 36561121432415 is 51423412116563.

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

It is not a de Polignac number, because 36561121432415 - 2¹⁸ = 36561121170271 is a prime.

It is a super-2 number, since 2×36561121432415² (a number of 28 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 (36561121432417) 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, 9117484637 + ... + 9117488646.

It is an arithmetic number, because the mean of its divisors is an integer number (5497844445126).

Almost surely, 2^{36561121432415} is an apocalyptic number.

36561121432415 is a deficient number, since it is larger than the sum of its proper divisors (7421634128593).

36561121432415 is a wasteful number, since it uses less digits than its factorization.

36561121432415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18234973689.

The product of its digits is 518400, while the sum is 44.

Adding to 36561121432415 its reverse (51423412116563), we get a palindrome (87984533548978).

The spelling of 36561121432415 in words is "thirty-six trillion, five hundred sixty-one billion, one hundred twenty-one million, four hundred thirty-two thousand, four hundred fifteen".