61766066716 has 6 divisors (see below), whose sum is σ = 108090616760. Its totient is φ = 30883033356.

The previous prime is 61766066683. The next prime is 61766066737.

61766066716 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7720758336 + ... + 7720758343.

Almost surely, 2^61766066716 is an apocalyptic number.

It is an amenable number.

61766066716 is a deficient number, since it is larger than the sum of its proper divisors (46324550044).

61766066716 is a wasteful number, since it uses less digits than its factorization.

61766066716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15441516683 (or 15441516681 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 61766066716 in words is "sixty-one billion, seven hundred sixty-six million, sixty-six thousand, seven hundred sixteen".