20315111416455 has 8 divisors (see below), whose sum is σ = 32504178266352. Its totient is φ = 10834726088768.

The previous prime is 20315111416421. The next prime is 20315111416463. The reversal of 20315111416455 is 55461411151302.

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 20315111416455 - 2¹⁴ = 20315111400071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677170380534 + ... + 677170380563.

It is an arithmetic number, because the mean of its divisors is an integer number (4063022283294).

Almost surely, 2^{20315111416455} is an apocalyptic number.

20315111416455 is a deficient number, since it is larger than the sum of its proper divisors (12189066849897).

20315111416455 is a wasteful number, since it uses less digits than its factorization.

20315111416455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354340761105.

The product of its (nonzero) digits is 72000, while the sum is 39.

Adding to 20315111416455 its reverse (55461411151302), we get a palindrome (75776522567757).

The spelling of 20315111416455 in words is "twenty trillion, three hundred fifteen billion, one hundred eleven million, four hundred sixteen thousand, four hundred fifty-five".