61663037017 has 8 divisors (see below), whose sum is σ = 62996484096. Its totient is φ = 60330484512.

The previous prime is 61663037011. The next prime is 61663037063. The reversal of 61663037017 is 71073036616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61663037017 - 2⁷ = 61663036889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61663037011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83353 + ... + 360934.

It is an arithmetic number, because the mean of its divisors is an integer number (7874560512).

Almost surely, 2^61663037017 is an apocalyptic number.

It is an amenable number.

61663037017 is a deficient number, since it is larger than the sum of its proper divisors (1333447079).

61663037017 is a wasteful number, since it uses less digits than its factorization.

61663037017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447287.

The product of its (nonzero) digits is 95256, while the sum is 40.

The spelling of 61663037017 in words is "sixty-one billion, six hundred sixty-three million, thirty-seven thousand, seventeen".