61611113221624 has 16 divisors (see below), whose sum is σ = 115522463556720. Its totient is φ = 30805122939840.

The previous prime is 61611113221561. The next prime is 61611113221643. The reversal of 61611113221624 is 42612231111616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53604684 + ... + 54741979.

It is an arithmetic number, because the mean of its divisors is an integer number (7220153972295).

Almost surely, 2^{61611113221624} is an apocalyptic number.

It is an amenable number.

61611113221624 is a deficient number, since it is larger than the sum of its proper divisors (53911350335096).

61611113221624 is a wasteful number, since it uses less digits than its factorization.

61611113221624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108417750 (or 108417746 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The spelling of 61611113221624 in words is "sixty-one trillion, six hundred eleven billion, one hundred thirteen million, two hundred twenty-one thousand, six hundred twenty-four".