1117211655860 has 48 divisors (see below), whose sum is σ = 2448307814400. Its totient is φ = 427427472384.

The previous prime is 1117211655799. The next prime is 1117211655943. The reversal of 1117211655860 is 685561127111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8012621 + ... + 8150859.

It is an arithmetic number, because the mean of its divisors is an integer number (51006412800).

Almost surely, 2^{1117211655860} is an apocalyptic number.

1117211655860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117211655860 is an abundant number, since it is smaller than the sum of its proper divisors (1331096158540).

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

1117211655860 is a wasteful number, since it uses less digits than its factorization.

1117211655860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155840 (or 155838 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 1117211655860 in words is "one trillion, one hundred seventeen billion, two hundred eleven million, six hundred fifty-five thousand, eight hundred sixty".