1117255061856 has 72 divisors (see below), whose sum is σ = 2938059403272. Its totient is φ = 371750092800.

The previous prime is 1117255061843. The next prime is 1117255061863. The reversal of 1117255061856 is 6581605527111.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262202766 + ... + 262207026.

It is an arithmetic number, because the mean of its divisors is an integer number (40806380601).

Almost surely, 2^{1117255061856} is an apocalyptic number.

1117255061856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1117255061856 is an abundant number, since it is smaller than the sum of its proper divisors (1820804341416).

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

1117255061856 is an frugal number, since it uses more digits than its factorization.

1117255061856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 48.

The spelling of 1117255061856 in words is "one trillion, one hundred seventeen billion, two hundred fifty-five million, sixty-one thousand, eight hundred fifty-six".