61100506112 has 88 divisors (see below), whose sum is σ = 129069081600. Its totient is φ = 28851204096.

The previous prime is 61100506013. The next prime is 61100506121. The reversal of 61100506112 is 21160500116.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844189 + ... + 1877027.

Almost surely, 2^61100506112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61100506112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64534540800).

61100506112 is an abundant number, since it is smaller than the sum of its proper divisors (67968575488).

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

61100506112 is a wasteful number, since it uses less digits than its factorization.

61100506112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32961 (or 32943 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 61100506112 in words is "sixty-one billion, one hundred million, five hundred six thousand, one hundred twelve".