61110485920 has 48 divisors (see below), whose sum is σ = 157498393248. Its totient is φ = 22221994240.

The previous prime is 61110485879. The next prime is 61110485951. The reversal of 61110485920 is 2958401116.

It is a self number, because there is not a number n which added to its sum of digits gives 61110485920.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17359174 + ... + 17362693.

It is an arithmetic number, because the mean of its divisors is an integer number (3281216526).

Almost surely, 2^61110485920 is an apocalyptic number.

It is an amenable number.

61110485920 is an abundant number, since it is smaller than the sum of its proper divisors (96387907328).

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

61110485920 is a wasteful number, since it uses less digits than its factorization.

61110485920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34721893 (or 34721885 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 61110485920 in words is "sixty-one billion, one hundred ten million, four hundred eighty-five thousand, nine hundred twenty".