61110663 has 4 divisors (see below), whose sum is σ = 81480888. Its totient is φ = 40740440.

The previous prime is 61110649. The next prime is 61110671. The reversal of 61110663 is 36601116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61110663 - 2²⁴ = 44333447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110683) 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, 10185108 + ... + 10185113.

It is an arithmetic number, because the mean of its divisors is an integer number (20370222).

Almost surely, 2^61110663 is an apocalyptic number.

61110663 is a deficient number, since it is larger than the sum of its proper divisors (20370225).

61110663 is a wasteful number, since it uses less digits than its factorization.

61110663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370224.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61110663 is about 7817.3309383702. The cubic root of 61110663 is about 393.8876207276.

Adding to 61110663 its reverse (36601116), we get a palindrome (97711779).

The spelling of 61110663 in words is "sixty-one million, one hundred ten thousand, six hundred sixty-three".