61321119696 has 120 divisors (see below), whose sum is σ = 181818289224. Its totient is φ = 19226419200.

The previous prime is 61321119667. The next prime is 61321119703. The reversal of 61321119696 is 69691112316.

61321119696 is a `hidden beast` number, since 613 + 2 + 11 + 19 + 6 + 9 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7932396096 + 53388723600 = 89064^2 + 231060^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4647060 + ... + 4660236.

Almost surely, 2^61321119696 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 61321119696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90909144612).

61321119696 is an abundant number, since it is smaller than the sum of its proper divisors (120497169528).

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

61321119696 is a wasteful number, since it uses less digits than its factorization.

61321119696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15109 (or 15100 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The spelling of 61321119696 in words is "sixty-one billion, three hundred twenty-one million, one hundred nineteen thousand, six hundred ninety-six".