61330052080 has 80 divisors (see below), whose sum is σ = 155596585824. Its totient is φ = 22295920640.

The previous prime is 61330052033. The next prime is 61330052117. The reversal of 61330052080 is 8025003316.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×61330052080² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4633632 + ... + 4646848.

Almost surely, 2^61330052080 is an apocalyptic number.

It is an amenable number.

61330052080 is an abundant number, since it is smaller than the sum of its proper divisors (94266533744).

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

61330052080 is a wasteful number, since it uses less digits than its factorization.

61330052080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18514 (or 18508 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 61330052080 its reverse (8025003316), we get a palindrome (69355055396).

The spelling of 61330052080 in words is "sixty-one billion, three hundred thirty million, fifty-two thousand, eighty".