20115343868684 has 24 divisors (see below), whose sum is σ = 36416024349600. Its totient is φ = 9710771495040.

The previous prime is 20115343868639. The next prime is 20115343868759. The reversal of 20115343868684 is 48686834351102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13919249 + ... + 15296279.

It is an arithmetic number, because the mean of its divisors is an integer number (1517334347900).

Almost surely, 2^{20115343868684} is an apocalyptic number.

It is an amenable number.

20115343868684 is a deficient number, since it is larger than the sum of its proper divisors (16300680480916).

20115343868684 is a wasteful number, since it uses less digits than its factorization.

20115343868684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502993 (or 1502991 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 59.

The spelling of 20115343868684 in words is "twenty trillion, one hundred fifteen billion, three hundred forty-three million, eight hundred sixty-eight thousand, six hundred eighty-four".