61680977222 has 32 divisors (see below), whose sum is σ = 93907107840. Its totient is φ = 30382853760.

The previous prime is 61680977203. The next prime is 61680977227. The reversal of 61680977222 is 22277908616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61680977227) 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 15 ways as a sum of consecutive naturals, for example, 23195729 + ... + 23198387.

It is an arithmetic number, because the mean of its divisors is an integer number (2934597120).

Almost surely, 2^61680977222 is an apocalyptic number.

61680977222 is a deficient number, since it is larger than the sum of its proper divisors (32226130618).

61680977222 is a wasteful number, since it uses less digits than its factorization.

61680977222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 61680977222 in words is "sixty-one billion, six hundred eighty million, nine hundred seventy-seven thousand, two hundred twenty-two".