20416154212313 has 4 divisors (see below), whose sum is σ = 21490688644560. Its totient is φ = 19341619780068.

The previous prime is 20416154212303. The next prime is 20416154212319. The reversal of 20416154212313 is 31321245161402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20416154212313 - 2¹⁸ = 20416153950169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20416154212319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537267216095 + ... + 537267216132.

It is an arithmetic number, because the mean of its divisors is an integer number (5372672161140).

Almost surely, 2^{20416154212313} is an apocalyptic number.

It is an amenable number.

20416154212313 is a deficient number, since it is larger than the sum of its proper divisors (1074534432247).

20416154212313 is a wasteful number, since it uses less digits than its factorization.

20416154212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074534432246.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 20416154212313 its reverse (31321245161402), we get a palindrome (51737399373715).

The spelling of 20416154212313 in words is "twenty trillion, four hundred sixteen billion, one hundred fifty-four million, two hundred twelve thousand, three hundred thirteen".