251606125412 has 24 divisors (see below), whose sum is σ = 446532216480. Its totient is φ = 124036637760.

The previous prime is 251606125373. The next prime is 251606125427. The reversal of 251606125412 is 214521606152.

251606125412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302737 + ... + 1483352.

It is an arithmetic number, because the mean of its divisors is an integer number (18605509020).

Almost surely, 2^251606125412 is an apocalyptic number.

It is an amenable number.

251606125412 is a deficient number, since it is larger than the sum of its proper divisors (194926091068).

251606125412 is a wasteful number, since it uses less digits than its factorization.

251606125412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786411 (or 2786409 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 251606125412 in words is "two hundred fifty-one billion, six hundred six million, one hundred twenty-five thousand, four hundred twelve".