20415645416231 has 12 divisors (see below), whose sum is σ = 22325762356200. Its totient is φ = 18658624888800.

The previous prime is 20415645416161. The next prime is 20415645416233. The reversal of 20415645416231 is 13261454651402.

It is a happy number.

It is not a de Polignac number, because 20415645416231 - 2¹⁸ = 20415645154087 is a prime.

It is a super-2 number, since 2×20415645416231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20415645416233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 598015781 + ... + 598049918.

It is an arithmetic number, because the mean of its divisors is an integer number (1860480196350).

Almost surely, 2^{20415645416231} is an apocalyptic number.

20415645416231 is a deficient number, since it is larger than the sum of its proper divisors (1910116939969).

20415645416231 is a wasteful number, since it uses less digits than its factorization.

20415645416231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196065826 (or 1196065813 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 20415645416231 in words is "twenty trillion, four hundred fifteen billion, six hundred forty-five million, four hundred sixteen thousand, two hundred thirty-one".