61112334450 has 24 divisors (see below), whose sum is σ = 151558589808. Its totient is φ = 16296622480.

The previous prime is 61112334449. The next prime is 61112334457. The reversal of 61112334450 is 5443321116.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (61112334457) 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 11 ways as a sum of consecutive naturals, for example, 203707632 + ... + 203707931.

It is an arithmetic number, because the mean of its divisors is an integer number (6314941242).

Almost surely, 2^61112334450 is an apocalyptic number.

61112334450 is an abundant number, since it is smaller than the sum of its proper divisors (90446255358).

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

61112334450 is a wasteful number, since it uses less digits than its factorization.

61112334450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407415578 (or 407415573 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 61112334450 its reverse (5443321116), we get a palindrome (66555655566).

The spelling of 61112334450 in words is "sixty-one billion, one hundred twelve million, three hundred thirty-four thousand, four hundred fifty".