61616277563 has 32 divisors (see below), whose sum is σ = 68411965440. Its totient is φ = 55274762880.

The previous prime is 61616277559. The next prime is 61616277719. The reversal of 61616277563 is 36577261616.

It is a cyclic number.

It is not a de Polignac number, because 61616277563 - 2² = 61616277559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61616276563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5975270 + ... + 5985572.

It is an arithmetic number, because the mean of its divisors is an integer number (2137873920).

Almost surely, 2^61616277563 is an apocalyptic number.

61616277563 is a deficient number, since it is larger than the sum of its proper divisors (6795687877).

61616277563 is a wasteful number, since it uses less digits than its factorization.

61616277563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10587.

The product of its digits is 1905120, while the sum is 50.

The spelling of 61616277563 in words is "sixty-one billion, six hundred sixteen million, two hundred seventy-seven thousand, five hundred sixty-three".