1163855180680 has 32 divisors (see below), whose sum is σ = 2732529556800. Its totient is φ = 445301112256.

The previous prime is 1163855180671. The next prime is 1163855180687. The reversal of 1163855180680 is 860815583611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1163855180687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632529070 + ... + 632530909.

It is an arithmetic number, because the mean of its divisors is an integer number (85391548650).

Almost surely, 2^{1163855180680} is an apocalyptic number.

1163855180680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163855180680 is an abundant number, since it is smaller than the sum of its proper divisors (1568674376120).

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

1163855180680 is a wasteful number, since it uses less digits than its factorization.

1163855180680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265060013 (or 1265060009 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 1163855180680 in words is "one trillion, one hundred sixty-three billion, eight hundred fifty-five million, one hundred eighty thousand, six hundred eighty".