61344324064 has 24 divisors (see below), whose sum is σ = 122016712608. Its totient is φ = 30355952640.

The previous prime is 61344324047. The next prime is 61344324071. The reversal of 61344324064 is 46042344316.

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, 9878392 + ... + 9884599.

It is an arithmetic number, because the mean of its divisors is an integer number (5084029692).

Almost surely, 2^61344324064 is an apocalyptic number.

It is an amenable number.

61344324064 is a deficient number, since it is larger than the sum of its proper divisors (60672388544).

61344324064 is a wasteful number, since it uses less digits than its factorization.

61344324064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19763098 (or 19763090 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 61344324064 in words is "sixty-one billion, three hundred forty-four million, three hundred twenty-four thousand, sixty-four".