61595216016 has 40 divisors (see below), whose sum is σ = 163421546304. Its totient is φ = 19976826240.

The previous prime is 61595216009. The next prime is 61595216131. The reversal of 61595216016 is 61061259516.

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 7 ways as a sum of consecutive naturals, for example, 17339220 + ... + 17342771.

Almost surely, 2^61595216016 is an apocalyptic number.

It is an amenable number.

61595216016 is an abundant number, since it is smaller than the sum of its proper divisors (101826330288).

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

61595216016 is a wasteful number, since it uses less digits than its factorization.

61595216016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34682039 (or 34682033 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 61595216016 in words is "sixty-one billion, five hundred ninety-five million, two hundred sixteen thousand, sixteen".