82561036330 has 16 divisors (see below), whose sum is σ = 149594039424. Its totient is φ = 32805709200.

The previous prime is 82561036309. The next prime is 82561036487. The reversal of 82561036330 is 3363016528.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 82561036330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27336582 + ... + 27339601.

It is an arithmetic number, because the mean of its divisors is an integer number (9349627464).

Almost surely, 2^82561036330 is an apocalyptic number.

82561036330 is a deficient number, since it is larger than the sum of its proper divisors (67033003094).

82561036330 is a wasteful number, since it uses less digits than its factorization.

82561036330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54676341.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 82561036330 in words is "eighty-two billion, five hundred sixty-one million, thirty-six thousand, three hundred thirty".