69561216312 has 128 divisors (see below), whose sum is σ = 214309670400. Its totient is φ = 18369331200.

The previous prime is 69561216247. The next prime is 69561216343. The reversal of 69561216312 is 21361216596.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 134889 + ... + 396632.

It is an arithmetic number, because the mean of its divisors is an integer number (1674294300).

Almost surely, 2^69561216312 is an apocalyptic number.

It is an amenable number.

69561216312 is an abundant number, since it is smaller than the sum of its proper divisors (144748454088).

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

69561216312 is a wasteful number, since it uses less digits than its factorization.

69561216312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531597 (or 531593 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The spelling of 69561216312 in words is "sixty-nine billion, five hundred sixty-one million, two hundred sixteen thousand, three hundred twelve".