20331212032866 has 32 divisors (see below), whose sum is σ = 46471511952000. Its totient is φ = 5808896453376.

The previous prime is 20331212032861. The next prime is 20331212032867. The reversal of 20331212032866 is 66823021213302.

It is not an unprimeable number, because it can be changed into a prime (20331212032861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13448010 + ... + 14883258.

It is an arithmetic number, because the mean of its divisors is an integer number (1452234748500).

Almost surely, 2^{20331212032866} is an apocalyptic number.

20331212032866 is an abundant number, since it is smaller than the sum of its proper divisors (26140299919134).

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

20331212032866 is a wasteful number, since it uses less digits than its factorization.

20331212032866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772538.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 20331212032866 in words is "twenty trillion, three hundred thirty-one billion, two hundred twelve million, thirty-two thousand, eight hundred sixty-six".