1251164016124 has 24 divisors (see below), whose sum is σ = 2389957957296. Its totient is φ = 568384224000.

The previous prime is 1251164016121. The next prime is 1251164016149. The reversal of 1251164016124 is 4216104611521.

It is a super-2 number, since 2×1251164016124² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1251164016124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251164016121) 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, 8089837 + ... + 8243044.

It is an arithmetic number, because the mean of its divisors is an integer number (99581581554).

Almost surely, 2^{1251164016124} is an apocalyptic number.

It is an amenable number.

1251164016124 is a deficient number, since it is larger than the sum of its proper divisors (1138793941172).

1251164016124 is a wasteful number, since it uses less digits than its factorization.

1251164016124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16334637 (or 16334635 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

Adding to 1251164016124 its reverse (4216104611521), we get a palindrome (5467268627645).

The spelling of 1251164016124 in words is "one trillion, two hundred fifty-one billion, one hundred sixty-four million, sixteen thousand, one hundred twenty-four".