20343653516344 has 32 divisors (see below), whose sum is σ = 39457015603200. Its totient is φ = 9823152728160.

The previous prime is 20343653516311. The next prime is 20343653516363. The reversal of 20343653516344 is 44361535634302.

It is a congruent number.

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, 85508412 + ... + 85745995.

It is an arithmetic number, because the mean of its divisors is an integer number (1233031737600).

Almost surely, 2^{20343653516344} is an apocalyptic number.

It is an amenable number.

20343653516344 is a deficient number, since it is larger than the sum of its proper divisors (19113362086856).

20343653516344 is a wasteful number, since it uses less digits than its factorization.

20343653516344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171254923 (or 171254919 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 49.

The spelling of 20343653516344 in words is "twenty trillion, three hundred forty-three billion, six hundred fifty-three million, five hundred sixteen thousand, three hundred forty-four".