61665676 has 6 divisors (see below), whose sum is σ = 107914940. Its totient is φ = 30832836.

The previous prime is 61665673. The next prime is 61665683. The reversal of 61665676 is 67656616.

It is not an unprimeable number, because it can be changed into a prime (61665673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7708206 + ... + 7708213.

Almost surely, 2^61665676 is an apocalyptic number.

It is an amenable number.

61665676 is a deficient number, since it is larger than the sum of its proper divisors (46249264).

61665676 is a wasteful number, since it uses less digits than its factorization.

61665676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15416423 (or 15416421 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 61665676 is about 7852.7495821527. The cubic root of 61665676 is about 395.0764708005.

The spelling of 61665676 in words is "sixty-one million, six hundred sixty-five thousand, six hundred seventy-six".