61056111100 has 36 divisors (see below), whose sum is σ = 133046172000. Its totient is φ = 24320248960.

The previous prime is 61056111043. The next prime is 61056111107. The reversal of 61056111100 is 111165016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61056111107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253425 + ... + 1301224.

It is an arithmetic number, because the mean of its divisors is an integer number (3695727000).

Almost surely, 2^61056111100 is an apocalyptic number.

It is an amenable number.

61056111100 is an abundant number, since it is smaller than the sum of its proper divisors (71990060900).

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

61056111100 is a wasteful number, since it uses less digits than its factorization.

61056111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554902 (or 2554895 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 61056111100 its reverse (111165016), we get a palindrome (61167276116).

The spelling of 61056111100 in words is "sixty-one billion, fifty-six million, one hundred eleven thousand, one hundred".