66219481495116 has 96 divisors (see below), whose sum is σ = 188573148556800. Its totient is φ = 20002223229120.

The previous prime is 66219481495091. The next prime is 66219481495117. The reversal of 66219481495116 is 61159418491266.

66219481495116 is a `hidden beast` number, since 6 + 6 + 21 + 9 + 4 + 8 + 1 + 495 + 116 = 666.

It is not an unprimeable number, because it can be changed into a prime (66219481495117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 701489815 + ... + 701584206.

It is an arithmetic number, because the mean of its divisors is an integer number (1964303630800).

Almost surely, 2^{66219481495116} is an apocalyptic number.

It is an amenable number.

66219481495116 is an abundant number, since it is smaller than the sum of its proper divisors (122353667061684).

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

66219481495116 is a wasteful number, since it uses less digits than its factorization.

66219481495116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403074076 (or 1403074068 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The spelling of 66219481495116 in words is "sixty-six trillion, two hundred nineteen billion, four hundred eighty-one million, four hundred ninety-five thousand, one hundred sixteen".