36161620 has 24 divisors (see below), whose sum is σ = 82843488. Its totient is φ = 13149600.

The previous prime is 36161603. The next prime is 36161627. The reversal of 36161620 is 2616163.

It is a super-2 number, since 2×36161620² = 2615325522048800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36161627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81966 + ... + 82405.

It is an arithmetic number, because the mean of its divisors is an integer number (3451812).

Almost surely, 2^36161620 is an apocalyptic number.

It is an amenable number.

36161620 is an abundant number, since it is smaller than the sum of its proper divisors (46681868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36161620 is a wasteful number, since it uses less digits than its factorization.

36161620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164391 (or 164389 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 36161620 is about 6013.4532508368. The cubic root of 36161620 is about 330.6861145740.

Adding to 36161620 its reverse (2616163), we get a palindrome (38777783).

The spelling of 36161620 in words is "thirty-six million, one hundred sixty-one thousand, six hundred twenty".