61059940663 has 8 divisors (see below), whose sum is σ = 61311265200. Its totient is φ = 60808796928.

The previous prime is 61059940651. The next prime is 61059940693. The reversal of 61059940663 is 36604995016.

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 61059940663 - 2²⁵ = 61026386231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61059940633) 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, 653748 + ... + 741286.

It is an arithmetic number, because the mean of its divisors is an integer number (7663908150).

Almost surely, 2^61059940663 is an apocalyptic number.

61059940663 is a deficient number, since it is larger than the sum of its proper divisors (251324537).

61059940663 is a wasteful number, since it uses less digits than its factorization.

61059940663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90401.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 61059940663 in words is "sixty-one billion, fifty-nine million, nine hundred forty thousand, six hundred sixty-three".