20154116253 has 4 divisors (see below), whose sum is σ = 26872155008. Its totient is φ = 13436077500.

The previous prime is 20154116207. The next prime is 20154116263. The reversal of 20154116253 is 35261145102.

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 not a de Polignac number, because 20154116253 - 2⁸ = 20154115997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20154116253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154116263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3359019373 + ... + 3359019378.

It is an arithmetic number, because the mean of its divisors is an integer number (6718038752).

Almost surely, 2^20154116253 is an apocalyptic number.

It is an amenable number.

20154116253 is a deficient number, since it is larger than the sum of its proper divisors (6718038755).

20154116253 is an equidigital number, since it uses as much as digits as its factorization.

20154116253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718038754.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 20154116253 in words is "twenty billion, one hundred fifty-four million, one hundred sixteen thousand, two hundred fifty-three".