61100506120 has 32 divisors (see below), whose sum is σ = 138011088600. Its totient is φ = 24345100288.

The previous prime is 61100506013. The next prime is 61100506121. The reversal of 61100506120 is 2160500116.

It can be written as a sum of positive squares in 4 ways, for example, as 56694467236 + 4406038884 = 238106^2 + 66378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61100506091 and 61100506100.

It is not an unprimeable number, because it can be changed into a prime (61100506121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961535 + ... + 2982094.

Almost surely, 2^61100506120 is an apocalyptic number.

It is an amenable number.

61100506120 is an abundant number, since it is smaller than the sum of its proper divisors (76910582480).

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

61100506120 is a wasteful number, since it uses less digits than its factorization.

61100506120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943897 (or 5943893 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 61100506120 in words is "sixty-one billion, one hundred million, five hundred six thousand, one hundred twenty".