36161204520 has 128 divisors (see below), whose sum is σ = 124022845440. Its totient is φ = 8262647040.

The previous prime is 36161204503. The next prime is 36161204579. The reversal of 36161204520 is 2540216163.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3532129 + ... + 3542351.

It is an arithmetic number, because the mean of its divisors is an integer number (968928480).

Almost surely, 2^36161204520 is an apocalyptic number.

36161204520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36161204520 is an abundant number, since it is smaller than the sum of its proper divisors (87861640920).

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

36161204520 is a wasteful number, since it uses less digits than its factorization.

36161204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14455 (or 14451 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 36161204520 in words is "thirty-six billion, one hundred sixty-one million, two hundred four thousand, five hundred twenty".