1271276615560 has 32 divisors (see below), whose sum is σ = 3268997012160. Its totient is φ = 435866268096.

The previous prime is 1271276615533. The next prime is 1271276615591. The reversal of 1271276615560 is 655166721721.

It is a super-2 number, since 2×1271276615560² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270136534 + ... + 2270137093.

It is an arithmetic number, because the mean of its divisors is an integer number (102156156630).

Almost surely, 2^{1271276615560} is an apocalyptic number.

1271276615560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271276615560 is an abundant number, since it is smaller than the sum of its proper divisors (1997720396600).

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

1271276615560 is a wasteful number, since it uses less digits than its factorization.

1271276615560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540273645 (or 4540273641 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 1271276615560 in words is "one trillion, two hundred seventy-one billion, two hundred seventy-six million, six hundred fifteen thousand, five hundred sixty".