61330828563604 has 24 divisors (see below), whose sum is σ = 107446465905408. Its totient is φ = 30631843146720.

The previous prime is 61330828563517. The next prime is 61330828563619. The reversal of 61330828563604 is 40636582803316.

It is a super-2 number, since 2×61330828563604² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 50663269 + ... + 51859699.

It is an arithmetic number, because the mean of its divisors is an integer number (4476936079392).

Almost surely, 2^{61330828563604} is an apocalyptic number.

It is an amenable number.

61330828563604 is a deficient number, since it is larger than the sum of its proper divisors (46115637341804).

61330828563604 is a wasteful number, since it uses less digits than its factorization.

61330828563604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210455 (or 1210453 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 61330828563604 in words is "sixty-one trillion, three hundred thirty billion, eight hundred twenty-eight million, five hundred sixty-three thousand, six hundred four".