2160021535452 has 144 divisors (see below), whose sum is σ = 6098800675968. Its totient is φ = 638925356160.

The previous prime is 2160021535439. The next prime is 2160021535459. The reversal of 2160021535452 is 2545351200612.

2160021535452 is a `hidden beast` number, since 2 + 1 + 60 + 0 + 2 + 1 + 53 + 545 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160021535459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27426843 + ... + 27505485.

It is an arithmetic number, because the mean of its divisors is an integer number (42352782472).

Almost surely, 2^{2160021535452} is an apocalyptic number.

2160021535452 is a gapful number since it is divisible by the number (22) 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 2160021535452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3049400337984).

2160021535452 is an abundant number, since it is smaller than the sum of its proper divisors (3938779140516).

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

2160021535452 is a wasteful number, since it uses less digits than its factorization.

2160021535452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80320 (or 80315 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 2160021535452 in words is "two trillion, one hundred sixty billion, twenty-one million, five hundred thirty-five thousand, four hundred fifty-two".