61582028516 has 24 divisors (see below), whose sum is σ = 109238438400. Its totient is φ = 30373373952.

The previous prime is 61582028509. The next prime is 61582028531.

61582028516 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×61582028516² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 184916 + ... + 396683.

It is an arithmetic number, because the mean of its divisors is an integer number (4551601600).

Almost surely, 2^61582028516 is an apocalyptic number.

It is an amenable number.

61582028516 is a deficient number, since it is larger than the sum of its proper divisors (47656409884).

61582028516 is a wasteful number, since it uses less digits than its factorization.

61582028516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581963 (or 581961 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 61582028516 in words is "sixty-one billion, five hundred eighty-two million, twenty-eight thousand, five hundred sixteen".