2166033543435 has 24 divisors (see below), whose sum is σ = 3754509817344. Its totient is φ = 1155201989760.

The previous prime is 2166033543407. The next prime is 2166033543481. The reversal of 2166033543435 is 5343453306612.

2166033543435 is a `hidden beast` number, since 2 + 1 + 6 + 60 + 3 + 3 + 543 + 43 + 5 = 666.

It is not a de Polignac number, because 2166033543435 - 2¹¹ = 2166033541387 is a prime.

It is a super-2 number, since 2×2166033543435² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 3448479 + ... + 4027911.

It is an arithmetic number, because the mean of its divisors is an integer number (156437909056).

Almost surely, 2^{2166033543435} is an apocalyptic number.

2166033543435 is a deficient number, since it is larger than the sum of its proper divisors (1588476273909).

2166033543435 is a wasteful number, since it uses less digits than its factorization.

2166033543435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662515 (or 662512 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 45.

The spelling of 2166033543435 in words is "two trillion, one hundred sixty-six billion, thirty-three million, five hundred forty-three thousand, four hundred thirty-five".