12751016501 has 4 divisors (see below), whose sum is σ = 12991601772. Its totient is φ = 12510431232.

The previous prime is 12751016461. The next prime is 12751016521. The reversal of 12751016501 is 10561015721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10561015721 = 13807 ⋅764903.

It can be written as a sum of positive squares in 2 ways, for example, as 4208635876 + 8542380625 = 64874^2 + 92425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12751016501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751016521) 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, 120292556 + ... + 120292661.

It is an arithmetic number, because the mean of its divisors is an integer number (3247900443).

Almost surely, 2^12751016501 is an apocalyptic number.

It is an amenable number.

12751016501 is a deficient number, since it is larger than the sum of its proper divisors (240585271).

12751016501 is an equidigital number, since it uses as much as digits as its factorization.

12751016501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240585270.

The product of its (nonzero) digits is 2100, while the sum is 29.

The spelling of 12751016501 in words is "twelve billion, seven hundred fifty-one million, sixteen thousand, five hundred one".