61105051061 has 16 divisors (see below), whose sum is σ = 65160115200. Its totient is φ = 57134449008.

The previous prime is 61105050997. The next prime is 61105051067. The reversal of 61105051061 is 16015050116.

61105051061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61105051061 - 2⁶ = 61105050997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61105051061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61105051067) 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, 5017766 + ... + 5029928.

It is an arithmetic number, because the mean of its divisors is an integer number (4072507200).

Almost surely, 2^61105051061 is an apocalyptic number.

It is an amenable number.

61105051061 is a deficient number, since it is larger than the sum of its proper divisors (4055064139).

61105051061 is a wasteful number, since it uses less digits than its factorization.

61105051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15608.

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 61105051061 in words is "sixty-one billion, one hundred five million, fifty-one thousand, sixty-one".