251129122116532 has 24 divisors (see below), whose sum is σ = 483908962592160. Its totient is φ = 113082782259360.

The previous prime is 251129122116497. The next prime is 251129122116533. The reversal of 251129122116532 is 235611221921152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251129122116533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26670462807 + ... + 26670472222.

It is an arithmetic number, because the mean of its divisors is an integer number (20162873441340).

Almost surely, 2^{251129122116532} is an apocalyptic number.

251129122116532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

251129122116532 is a deficient number, since it is larger than the sum of its proper divisors (232779840475628).

251129122116532 is a wasteful number, since it uses less digits than its factorization.

251129122116532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53340935151 (or 53340935149 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The spelling of 251129122116532 in words is "two hundred fifty-one trillion, one hundred twenty-nine billion, one hundred twenty-two million, one hundred sixteen thousand, five hundred thirty-two".