1270656667280 has 960 divisors, whose sum is σ = 4367402468352. Its totient is φ = 336639098880.

The previous prime is 1270656667277. The next prime is 1270656667337. The reversal of 1270656667280 is 827666560721.

It is a super-2 number, since 2×1270656667280² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 447886022 + ... + 447888858.

Almost surely, 2^{1270656667280} is an apocalyptic number.

1270656667280 is a gapful number since it is divisible by the number (10) 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 1270656667280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183701234176).

1270656667280 is an abundant number, since it is smaller than the sum of its proper divisors (3096745801072).

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

1270656667280 is a wasteful number, since it uses less digits than its factorization.

1270656667280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 1270656667280 in words is "one trillion, two hundred seventy billion, six hundred fifty-six million, six hundred sixty-seven thousand, two hundred eighty".