20315653024451 has 8 divisors (see below), whose sum is σ = 21708037232640. Its totient is φ = 18945196126848.

The previous prime is 20315653024411. The next prime is 20315653024517. The reversal of 20315653024451 is 15442035651302.

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 20315653024451 - 2³⁸ = 20040775117507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20315653024399 and 20315653024408.

It is not an unprimeable number, because it can be changed into a prime (20315653024411) 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, 5481825731 + ... + 5481829436.

It is an arithmetic number, because the mean of its divisors is an integer number (2713504654080).

Almost surely, 2^{20315653024451} is an apocalyptic number.

20315653024451 is a deficient number, since it is larger than the sum of its proper divisors (1392384208189).

20315653024451 is a wasteful number, since it uses less digits than its factorization.

20315653024451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10963655293.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 20315653024451 its reverse (15442035651302), we get a palindrome (35757688675753).

The spelling of 20315653024451 in words is "twenty trillion, three hundred fifteen billion, six hundred fifty-three million, twenty-four thousand, four hundred fifty-one".