61246664216 has 16 divisors (see below), whose sum is σ = 115974501840. Its totient is φ = 30320130400.

The previous prime is 61246664177. The next prime is 61246664233.

61246664216 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37899356 + ... + 37900971.

It is an arithmetic number, because the mean of its divisors is an integer number (7248406365).

Almost surely, 2^61246664216 is an apocalyptic number.

It is an amenable number.

61246664216 is a deficient number, since it is larger than the sum of its proper divisors (54727837624).

61246664216 is a wasteful number, since it uses less digits than its factorization.

61246664216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75800434 (or 75800430 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The spelling of 61246664216 in words is "sixty-one billion, two hundred forty-six million, six hundred sixty-four thousand, two hundred sixteen".