20312641141656 has 64 divisors (see below), whose sum is σ = 50834316376800. Its totient is φ = 6763853488128.

The previous prime is 20312641141649. The next prime is 20312641141669. The reversal of 20312641141656 is 65614114621302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228719596 + ... + 228808388.

Almost surely, 2^{20312641141656} is an apocalyptic number.

It is an amenable number.

20312641141656 is an abundant number, since it is smaller than the sum of its proper divisors (30521675235144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312641141656 is a wasteful number, since it uses less digits than its factorization.

20312641141656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98588 (or 98584 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

Adding to 20312641141656 its reverse (65614114621302), we get a palindrome (85926755762958).

The spelling of 20312641141656 in words is "twenty trillion, three hundred twelve billion, six hundred forty-one million, one hundred forty-one thousand, six hundred fifty-six".