61082398080 has 640 divisors, whose sum is σ = 252004880160. Its totient is φ = 13934592000.

The previous prime is 61082398033. The next prime is 61082398093. The reversal of 61082398080 is 8089328016.

61082398080 is a `hidden beast` number, since 610 + 8 + 23 + 9 + 8 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 9690930 + ... + 9697230.

Almost surely, 2^61082398080 is an apocalyptic number.

61082398080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61082398080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126002440080).

61082398080 is an abundant number, since it is smaller than the sum of its proper divisors (190922482080).

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

61082398080 is a wasteful number, since it uses less digits than its factorization.

61082398080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360 (or 6339 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 61082398080 in words is "sixty-one billion, eighty-two million, three hundred ninety-eight thousand, eighty".