1149873199020 has 360 divisors, whose sum is σ = 4518907447824. Its totient is φ = 242610391296.

The previous prime is 1149873199003. The next prime is 1149873199049. The reversal of 1149873199020 is 209913789411.

1149873199020 is a `hidden beast` number, since 1 + 149 + 87 + 319 + 90 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 474799 + ... + 1589081.

Almost surely, 2^{1149873199020} is an apocalyptic number.

1149873199020 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 1149873199020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259453723912).

1149873199020 is an abundant number, since it is smaller than the sum of its proper divisors (3369034248804).

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

1149873199020 is a wasteful number, since it uses less digits than its factorization.

1149873199020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114331 (or 1114313 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 1149873199020 in words is "one trillion, one hundred forty-nine billion, eight hundred seventy-three million, one hundred ninety-nine thousand, twenty".