1170450721000 has 128 divisors (see below), whose sum is σ = 3017426929920. Its totient is φ = 421404000000.

The previous prime is 1170450720997. The next prime is 1170450721019. The reversal of 1170450721000 is 1270540711.

It is a self number, because there is not a number n which added to its sum of digits gives 1170450721000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 584245 + ... + 1637755.

It is an arithmetic number, because the mean of its divisors is an integer number (23573647890).

Almost surely, 2^{1170450721000} is an apocalyptic number.

1170450721000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1170450721000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508713464960).

1170450721000 is an abundant number, since it is smaller than the sum of its proper divisors (1846976208920).

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

1170450721000 is a wasteful number, since it uses less digits than its factorization.

1170450721000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053644 (or 1053630 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The spelling of 1170450721000 in words is "one trillion, one hundred seventy billion, four hundred fifty million, seven hundred twenty-one thousand".