251068065085 has 16 divisors (see below), whose sum is σ = 301953024000. Its totient is φ = 200407072320.

The previous prime is 251068065049. The next prime is 251068065119. The reversal of 251068065085 is 580560860152.

It is a happy number.

It is not a de Polignac number, because 251068065085 - 2⁹ = 251068064573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15318595 + ... + 15334975.

It is an arithmetic number, because the mean of its divisors is an integer number (18872064000).

Almost surely, 2^251068065085 is an apocalyptic number.

It is an amenable number.

251068065085 is a deficient number, since it is larger than the sum of its proper divisors (50884958915).

251068065085 is a wasteful number, since it uses less digits than its factorization.

251068065085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23028.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 251068065085 in words is "two hundred fifty-one billion, sixty-eight million, sixty-five thousand, eighty-five".