61885658816 has 14 divisors (see below), whose sum is σ = 122804354340. Its totient is φ = 30942829376.

The previous prime is 61885658797. The next prime is 61885658819.

61885658816 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (61885658819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483481646 + ... + 483481773.

Almost surely, 2^61885658816 is an apocalyptic number.

It is an amenable number.

61885658816 is a deficient number, since it is larger than the sum of its proper divisors (60918695524).

61885658816 is an equidigital number, since it uses as much as digits as its factorization.

61885658816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966963431 (or 966963421 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 62.

The spelling of 61885658816 in words is "sixty-one billion, eight hundred eighty-five million, six hundred fifty-eight thousand, eight hundred sixteen".