20116713225401 has 8 divisors (see below), whose sum is σ = 21679270765320. Its totient is φ = 18556315408512.

The previous prime is 20116713225391. The next prime is 20116713225407. The reversal of 20116713225401 is 10452231761102.

It can be written as a sum of positive squares in 4 ways, for example, as 2815281294400 + 17301431931001 = 1677880^2 + 4159499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20116713225401 - 2²⁶ = 20116646116537 is a prime.

It is a super-2 number, since 2×20116713225401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116713225407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539911406 + ... + 539948663.

It is an arithmetic number, because the mean of its divisors is an integer number (2709908845665).

Almost surely, 2^{20116713225401} is an apocalyptic number.

It is an amenable number.

20116713225401 is a deficient number, since it is larger than the sum of its proper divisors (1562557539919).

20116713225401 is a wasteful number, since it uses less digits than its factorization.

20116713225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079861515.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 20116713225401 its reverse (10452231761102), we get a palindrome (30568944986503).

The spelling of 20116713225401 in words is "twenty trillion, one hundred sixteen billion, seven hundred thirteen million, two hundred twenty-five thousand, four hundred one".