20154323326263 has 16 divisors (see below), whose sum is σ = 32327736664320. Its totient is φ = 10910611123776.

The previous prime is 20154323326253. The next prime is 20154323326273. The reversal of 20154323326263 is 36262332345102.

It is an interprime number because it is at equal distance from previous prime (20154323326253) and next prime (20154323326273).

It is not a de Polignac number, because 20154323326263 - 2¹⁰ = 20154323325239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154323326223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25256043870 + ... + 25256044667.

It is an arithmetic number, because the mean of its divisors is an integer number (2020483541520).

Almost surely, 2^{20154323326263} is an apocalyptic number.

20154323326263 is a deficient number, since it is larger than the sum of its proper divisors (12173413338057).

20154323326263 is a wasteful number, since it uses less digits than its factorization.

20154323326263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50512088566.

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 20154323326263 in words is "twenty trillion, one hundred fifty-four billion, three hundred twenty-three million, three hundred twenty-six thousand, two hundred sixty-three".