61705055113 has 16 divisors (see below), whose sum is σ = 67437377280. Its totient is φ = 56116659456.

The previous prime is 61705055089. The next prime is 61705055129. The reversal of 61705055113 is 31155050716.

It is not a de Polignac number, because 61705055113 - 2⁹ = 61705054601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61705055173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415281 + ... + 543937.

It is an arithmetic number, because the mean of its divisors is an integer number (4214836080).

Almost surely, 2^61705055113 is an apocalyptic number.

It is an amenable number.

61705055113 is a deficient number, since it is larger than the sum of its proper divisors (5732322167).

61705055113 is a wasteful number, since it uses less digits than its factorization.

61705055113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129216.

The product of its (nonzero) digits is 15750, while the sum is 34.

The spelling of 61705055113 in words is "sixty-one billion, seven hundred five million, fifty-five thousand, one hundred thirteen".