20344706137516 has 6 divisors (see below), whose sum is σ = 35603235740660. Its totient is φ = 10172353068756.

The previous prime is 20344706137477. The next prime is 20344706137531. The reversal of 20344706137516 is 61573160744302.

It is a self number, because there is not a number n which added to its sum of digits gives 20344706137516.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2543088267186 + ... + 2543088267193.

Almost surely, 2^{20344706137516} is an apocalyptic number.

It is an amenable number.

20344706137516 is a deficient number, since it is larger than the sum of its proper divisors (15258529603144).

20344706137516 is a wasteful number, since it uses less digits than its factorization.

20344706137516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086176534383 (or 5086176534381 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 20344706137516 in words is "twenty trillion, three hundred forty-four billion, seven hundred six million, one hundred thirty-seven thousand, five hundred sixteen".