1117955187556 has 9 divisors (see below), whose sum is σ = 1956425278899. Its totient is φ = 558976536444.

The previous prime is 1117955187541. The next prime is 1117955187563. The reversal of 1117955187556 is 6557815597111.

It is a happy number.

The square root of 1117955187556 is 1057334.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1117955187556² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1117955187494 and 1117955187503.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1850335 + ... + 2379001.

Almost surely, 2^{1117955187556} is an apocalyptic number.

1117955187556 is the 1057334-th square number.

It is an amenable number.

1117955187556 is a deficient number, since it is larger than the sum of its proper divisors (838470091343).

1117955187556 is an frugal number, since it uses more digits than its factorization.

1117955187556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057338 (or 528669 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 61.

The spelling of 1117955187556 in words is "one trillion, one hundred seventeen billion, nine hundred fifty-five million, one hundred eighty-seven thousand, five hundred fifty-six".