1265272195968 has 1024 divisors, whose sum is σ = 4472672256000. Its totient is φ = 350766028800.

The previous prime is 1265272195939. The next prime is 1265272195973. The reversal of 1265272195968 is 8695912725621.

1265272195968 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 27 + 2 + 19 + 596 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2709362071 + ... + 2709362537.

It is an arithmetic number, because the mean of its divisors is an integer number (4367844000).

Almost surely, 2^{1265272195968} is an apocalyptic number.

1265272195968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265272195968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236336128000).

1265272195968 is an abundant number, since it is smaller than the sum of its proper divisors (3207400060032).

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

1265272195968 is a wasteful number, since it uses less digits than its factorization.

1265272195968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 533 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 1265272195968 in words is "one trillion, two hundred sixty-five billion, two hundred seventy-two million, one hundred ninety-five thousand, nine hundred sixty-eight".