61601888324 has 6 divisors (see below), whose sum is σ = 107803304574. Its totient is φ = 30800944160.

The previous prime is 61601888317. The next prime is 61601888329. The reversal of 61601888324 is 42388810616.

It can be written as a sum of positive squares in only one way, i.e., 56059085824 + 5542802500 = 236768^2 + 74450^2 .

It is not an unprimeable number, because it can be changed into a prime (61601888329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700236037 + ... + 7700236044.

It is an arithmetic number, because the mean of its divisors is an integer number (17967217429).

Almost surely, 2^61601888324 is an apocalyptic number.

It is an amenable number.

61601888324 is a deficient number, since it is larger than the sum of its proper divisors (46201416250).

61601888324 is a wasteful number, since it uses less digits than its factorization.

61601888324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15400472085 (or 15400472083 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 61601888324 in words is "sixty-one billion, six hundred one million, eight hundred eighty-eight thousand, three hundred twenty-four".