61706575716 has 12 divisors (see below), whose sum is σ = 143982010032. Its totient is φ = 20568858568.

The previous prime is 61706575703. The next prime is 61706575751. The reversal of 61706575716 is 61757560716.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571107310 + ... + 2571107333.

It is an arithmetic number, because the mean of its divisors is an integer number (11998500836).

Almost surely, 2^61706575716 is an apocalyptic number.

It is an amenable number.

61706575716 is an abundant number, since it is smaller than the sum of its proper divisors (82275434316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61706575716 is a wasteful number, since it uses less digits than its factorization.

61706575716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142214650 (or 5142214648 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 51.

The spelling of 61706575716 in words is "sixty-one billion, seven hundred six million, five hundred seventy-five thousand, seven hundred sixteen".