361189120520 has 16 divisors (see below), whose sum is σ = 812675521260. Its totient is φ = 144475648192.

The previous prime is 361189120519. The next prime is 361189120531. The reversal of 361189120520 is 25021981163.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 338558732164 + 22630388356 = 581858^2 + 150434^2 .

It is a super-2 number, since 2×361189120520² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 4514863967 + ... + 4514864046.

Almost surely, 2^361189120520 is an apocalyptic number.

It is an amenable number.

361189120520 is an abundant number, since it is smaller than the sum of its proper divisors (451486400740).

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

361189120520 is a wasteful number, since it uses less digits than its factorization.

361189120520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029728024 (or 9029728020 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 361189120520 in words is "three hundred sixty-one billion, one hundred eighty-nine million, one hundred twenty thousand, five hundred twenty".