61575855857516 has 96 divisors (see below), whose sum is σ = 146033897974272. Its totient is φ = 21938198653440.

The previous prime is 61575855857471. The next prime is 61575855857519.

61575855857516 is nontrivially palindromic in base 10.

61575855857516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61575855857519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71434121 + ... + 72290976.

It is an arithmetic number, because the mean of its divisors is an integer number (1521186437232).

Almost surely, 2^{61575855857516} is an apocalyptic number.

It is an amenable number.

61575855857516 is an abundant number, since it is smaller than the sum of its proper divisors (84458042116756).

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

61575855857516 is a wasteful number, since it uses less digits than its factorization.

61575855857516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143725239 (or 143725237 counting only the distinct ones).

The product of its digits is 1764000000, while the sum is 74.

The spelling of 61575855857516 in words is "sixty-one trillion, five hundred seventy-five billion, eight hundred fifty-five million, eight hundred fifty-seven thousand, five hundred sixteen".