61103365266 has 16 divisors (see below), whose sum is σ = 122259960864. Its totient is φ = 20358916704.

The previous prime is 61103365259. The next prime is 61103365291. The reversal of 61103365266 is 66256330116.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203000 + ... + 2230563.

It is an arithmetic number, because the mean of its divisors is an integer number (7641247554).

Almost surely, 2^61103365266 is an apocalyptic number.

61103365266 is an abundant number, since it is smaller than the sum of its proper divisors (61156595598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61103365266 is a wasteful number, since it uses less digits than its factorization.

61103365266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435865.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 61103365266 in words is "sixty-one billion, one hundred three million, three hundred sixty-five thousand, two hundred sixty-six".