61112113570 has 64 divisors (see below), whose sum is σ = 123185059200. Its totient is φ = 21692482560.

The previous prime is 61112113541. The next prime is 61112113571. The reversal of 61112113570 is 7531121116.

It is not an unprimeable number, because it can be changed into a prime (61112113571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636696 + ... + 726364.

It is an arithmetic number, because the mean of its divisors is an integer number (1924766550).

Almost surely, 2^61112113570 is an apocalyptic number.

61112113570 is an abundant number, since it is smaller than the sum of its proper divisors (62072945630).

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

61112113570 is a wasteful number, since it uses less digits than its factorization.

61112113570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89923.

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 61112113570 its reverse (7531121116), we get a palindrome (68643234686).

The spelling of 61112113570 in words is "sixty-one billion, one hundred twelve million, one hundred thirteen thousand, five hundred seventy".