61616605059 has 24 divisors (see below), whose sum is σ = 92140606272. Its totient is φ = 39652986240.

The previous prime is 61616605027. The next prime is 61616605079. The reversal of 61616605059 is 95050661616.

It is not a de Polignac number, because 61616605059 - 2⁵ = 61616605027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61616605079) 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 23 ways as a sum of consecutive naturals, for example, 966832 + ... + 1028589.

It is an arithmetic number, because the mean of its divisors is an integer number (3839191928).

Almost surely, 2^61616605059 is an apocalyptic number.

61616605059 is a deficient number, since it is larger than the sum of its proper divisors (30524001213).

61616605059 is a wasteful number, since it uses less digits than its factorization.

61616605059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995547 (or 1995544 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 61616605059 in words is "sixty-one billion, six hundred sixteen million, six hundred five thousand, fifty-nine".