2251151235163 has 4 divisors (see below), whose sum is σ = 2253543532848. Its totient is φ = 2248758937480.

The previous prime is 2251151235139. The next prime is 2251151235233. The reversal of 2251151235163 is 3615321511522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251151235163 - 2²⁵ = 2251117680731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251151235103) 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, 1196147431 + ... + 1196149312.

It is an arithmetic number, because the mean of its divisors is an integer number (563385883212).

Almost surely, 2^{2251151235163} is an apocalyptic number.

2251151235163 is a deficient number, since it is larger than the sum of its proper divisors (2392297685).

2251151235163 is an equidigital number, since it uses as much as digits as its factorization.

2251151235163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392297684.

The product of its digits is 54000, while the sum is 37.

Adding to 2251151235163 its reverse (3615321511522), we get a palindrome (5866472746685).

The spelling of 2251151235163 in words is "two trillion, two hundred fifty-one billion, one hundred fifty-one million, two hundred thirty-five thousand, one hundred sixty-three".