61536604328 has 16 divisors (see below), whose sum is σ = 120397704480. Its totient is φ = 29430549808.

The previous prime is 61536604321. The next prime is 61536604421. The reversal of 61536604328 is 82340663516.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61536604321) 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 3 ways as a sum of consecutive naturals, for example, 167218850 + ... + 167219217.

It is an arithmetic number, because the mean of its divisors is an integer number (7524856530).

Almost surely, 2^61536604328 is an apocalyptic number.

It is an amenable number.

61536604328 is a deficient number, since it is larger than the sum of its proper divisors (58861100152).

61536604328 is a wasteful number, since it uses less digits than its factorization.

61536604328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334438096 (or 334438092 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 61536604328 in words is "sixty-one billion, five hundred thirty-six million, six hundred four thousand, three hundred twenty-eight".