1071321057625 has 64 divisors (see below), whose sum is σ = 1649111353344. Its totient is φ = 676642982400.

The previous prime is 1071321057619. The next prime is 1071321057641. The reversal of 1071321057625 is 5267501231701.

It is not a de Polignac number, because 1071321057625 - 2³ = 1071321057617 is a prime.

It is a super-2 number, since 2×1071321057625² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5164917 + ... + 5368333.

It is an arithmetic number, because the mean of its divisors is an integer number (25767364896).

Almost surely, 2^{1071321057625} is an apocalyptic number.

It is an amenable number.

1071321057625 is a deficient number, since it is larger than the sum of its proper divisors (577790295719).

1071321057625 is a wasteful number, since it uses less digits than its factorization.

1071321057625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203915 (or 203905 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 1071321057625 in words is "one trillion, seventy-one billion, three hundred twenty-one million, fifty-seven thousand, six hundred twenty-five".