61650033604 has 12 divisors (see below), whose sum is σ = 107954957628. Its totient is φ = 30805760000.

The previous prime is 61650033559. The next prime is 61650033619. The reversal of 61650033604 is 40633005616.

61650033604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53593176004 + 8056857600 = 231502^2 + 89760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61650033604.

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, 4806997 + ... + 4819804.

It is an arithmetic number, because the mean of its divisors is an integer number (8996246469).

Almost surely, 2^61650033604 is an apocalyptic number.

It is an amenable number.

61650033604 is a deficient number, since it is larger than the sum of its proper divisors (46304924024).

61650033604 is a wasteful number, since it uses less digits than its factorization.

61650033604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9628406 (or 9628404 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 61650033604 in words is "sixty-one billion, six hundred fifty million, thirty-three thousand, six hundred four".