1177998103220 has 24 divisors (see below), whose sum is σ = 2475333558600. Its totient is φ = 470906376192.

The previous prime is 1177998103193. The next prime is 1177998103229. The reversal of 1177998103220 is 223018997711.

It can be written as a sum of positive squares in 4 ways, for example, as 149976503824 + 1028021599396 = 387268^2 + 1013914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1177998103229) 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, 18271085 + ... + 18335444.

It is an arithmetic number, because the mean of its divisors is an integer number (103138898275).

Almost surely, 2^{1177998103220} is an apocalyptic number.

1177998103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1177998103220 is an abundant number, since it is smaller than the sum of its proper divisors (1297335455380).

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

1177998103220 is a wasteful number, since it uses less digits than its factorization.

1177998103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36608147 (or 36608145 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 1177998103220 in words is "one trillion, one hundred seventy-seven billion, nine hundred ninety-eight million, one hundred three thousand, two hundred twenty".