61103435432 has 128 divisors (see below), whose sum is σ = 127842624000. Its totient is φ = 27204802560.

The previous prime is 61103435383. The next prime is 61103435447. The reversal of 61103435432 is 23453430116.

It is an unprimeable number.

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, 112945082 + ... + 112945622.

It is an arithmetic number, because the mean of its divisors is an integer number (998770500).

Almost surely, 2^61103435432 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 61103435432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63921312000).

61103435432 is an abundant number, since it is smaller than the sum of its proper divisors (66739188568).

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

61103435432 is a wasteful number, since it uses less digits than its factorization.

61103435432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 61103435432 its reverse (23453430116), we get a palindrome (84556865548).

The spelling of 61103435432 in words is "sixty-one billion, one hundred three million, four hundred thirty-five thousand, four hundred thirty-two".