30561403230646 has 16 divisors (see below), whose sum is σ = 48021369195744. Its totient is φ = 14559450425344.

The previous prime is 30561403230643. The next prime is 30561403230671. The reversal of 30561403230646 is 64603230416503.

It is a super-2 number, since 2×30561403230646² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561403230643) 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, 1292553025 + ... + 1292576668.

It is an arithmetic number, because the mean of its divisors is an integer number (3001335574734).

Almost surely, 2^{30561403230646} is an apocalyptic number.

30561403230646 is a deficient number, since it is larger than the sum of its proper divisors (17459965965098).

30561403230646 is a wasteful number, since it uses less digits than its factorization.

30561403230646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585129975.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 30561403230646 in words is "thirty trillion, five hundred sixty-one billion, four hundred three million, two hundred thirty thousand, six hundred forty-six".