61105550506 has 32 divisors (see below), whose sum is σ = 123065728128. Its totient is φ = 21976021440.

The previous prime is 61105550501. The next prime is 61105550537. The reversal of 61105550506 is 60505550116.

61105550506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61105550501) 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, 15259125 + ... + 15263128.

It is an arithmetic number, because the mean of its divisors is an integer number (3845804004).

Almost surely, 2^61105550506 is an apocalyptic number.

61105550506 is an abundant number, since it is smaller than the sum of its proper divisors (61960177622).

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

61105550506 is a wasteful number, since it uses less digits than its factorization.

61105550506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30522286.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 61105550506 in words is "sixty-one billion, one hundred five million, five hundred fifty thousand, five hundred six".