2168540552376 has 192 divisors, whose sum is σ = 6483274668000. Its totient is φ = 649325445120.

The previous prime is 2168540552369. The next prime is 2168540552401. The reversal of 2168540552376 is 6732550458612.

2168540552376 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 5 + 40 + 5 + 523 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117635256 + ... + 117653688.

Almost surely, 2^{2168540552376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168540552376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241637334000).

2168540552376 is an abundant number, since it is smaller than the sum of its proper divisors (4314734115624).

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

2168540552376 is a wasteful number, since it uses less digits than its factorization.

2168540552376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20214 (or 20207 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 2168540552376 in words is "two trillion, one hundred sixty-eight billion, five hundred forty million, five hundred fifty-two thousand, three hundred seventy-six".