61366533147663 has 16 divisors (see below), whose sum is σ = 83052190104576. Its totient is φ = 40296080341440.

The previous prime is 61366533147641. The next prime is 61366533147707. The reversal of 61366533147663 is 36674133566316.

It is not a de Polignac number, because 61366533147663 - 2¹² = 61366533143567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61366533147597 and 61366533147606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61366533147613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14523406 + ... + 18266427.

It is an arithmetic number, because the mean of its divisors is an integer number (5190761881536).

Almost surely, 2^{61366533147663} is an apocalyptic number.

61366533147663 is a deficient number, since it is larger than the sum of its proper divisors (21685656956913).

61366533147663 is a wasteful number, since it uses less digits than its factorization.

61366533147663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32799214.

The product of its digits is 88179840, while the sum is 60.

The spelling of 61366533147663 in words is "sixty-one trillion, three hundred sixty-six billion, five hundred thirty-three million, one hundred forty-seven thousand, six hundred sixty-three".