971266937256 has 1024 divisors, whose sum is σ = 3626178969600. Its totient is φ = 233433446400.

The previous prime is 971266937203. The next prime is 971266937357. The reversal of 971266937256 is 652739662179.

971266937256 is a `hidden beast` number, since 97 + 1 + 266 + 9 + 37 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 971266937193 and 971266937202.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2253519361 + ... + 2253519791.

It is an arithmetic number, because the mean of its divisors is an integer number (3541190400).

Almost surely, 2^971266937256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971266937256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1813089484800).

971266937256 is an abundant number, since it is smaller than the sum of its proper divisors (2654912032344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971266937256 is a wasteful number, since it uses less digits than its factorization.

971266937256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 657 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 971266937256 in words is "nine hundred seventy-one billion, two hundred sixty-six million, nine hundred thirty-seven thousand, two hundred fifty-six".