1153771153920 has 3360 divisors, whose sum is σ = 5580032426496. Its totient is φ = 225740390400.

The previous prime is 1153771153907. The next prime is 1153771153949. The reversal of 1153771153920 is 293511773511.

1153771153920 is a `hidden beast` number, since 1 + 1 + 537 + 71 + 15 + 39 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 31183004142 + ... + 31183004178.

Almost surely, 2^{1153771153920} is an apocalyptic number.

1153771153920 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 1153771153920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2790016213248).

1153771153920 is an abundant number, since it is smaller than the sum of its proper divisors (4426261272576).

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

1153771153920 is an equidigital number, since it uses as much as digits as its factorization.

1153771153920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 45.

The spelling of 1153771153920 in words is "one trillion, one hundred fifty-three billion, seven hundred seventy-one million, one hundred fifty-three thousand, nine hundred twenty".