361625233221 has 24 divisors (see below), whose sum is σ = 622923799680. Its totient is φ = 197658511776.

The previous prime is 361625233217. The next prime is 361625233259. The reversal of 361625233221 is 122332526163.

361625233221 is a `hidden beast` number, since 3 + 6 + 1 + 625 + 2 + 3 + 3 + 2 + 21 = 666.

It is not a de Polignac number, because 361625233221 - 2² = 361625233217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361625233421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124782966 + ... + 124785863.

It is an arithmetic number, because the mean of its divisors is an integer number (25955158320).

Almost surely, 2^361625233221 is an apocalyptic number.

It is an amenable number.

361625233221 is a deficient number, since it is larger than the sum of its proper divisors (261298566459).

361625233221 is a wasteful number, since it uses less digits than its factorization.

361625233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249568865 (or 249568862 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

Adding to 361625233221 its reverse (122332526163), we get a palindrome (483957759384).

The spelling of 361625233221 in words is "three hundred sixty-one billion, six hundred twenty-five million, two hundred thirty-three thousand, two hundred twenty-one".