61766716 has 12 divisors (see below), whose sum is σ = 117918360. Its totient is φ = 28075760.

The previous prime is 61766699. The next prime is 61766717.

61766716 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61766717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701851 + ... + 701938.

It is an arithmetic number, because the mean of its divisors is an integer number (9826530).

Almost surely, 2^61766716 is an apocalyptic number.

It is an amenable number.

61766716 is a deficient number, since it is larger than the sum of its proper divisors (56151644).

61766716 is a wasteful number, since it uses less digits than its factorization.

61766716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403804 (or 1403802 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 61766716 is about 7859.1803643892. The cubic root of 61766716 is about 395.2921323412.

The spelling of 61766716 in words is "sixty-one million, seven hundred sixty-six thousand, seven hundred sixteen".