2166062521452 has 48 divisors (see below), whose sum is σ = 5060532496992. Its totient is φ = 721108776960.

The previous prime is 2166062521451. The next prime is 2166062521517. The reversal of 2166062521452 is 2541252606612.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2166062521451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68268952 + ... + 68300672.

It is an arithmetic number, because the mean of its divisors is an integer number (105427760354).

Almost surely, 2^{2166062521452} is an apocalyptic number.

It is an amenable number.

2166062521452 is an abundant number, since it is smaller than the sum of its proper divisors (2894469975540).

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

2166062521452 is a wasteful number, since it uses less digits than its factorization.

2166062521452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38738 (or 38736 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 2166062521452 in words is "two trillion, one hundred sixty-six billion, sixty-two million, five hundred twenty-one thousand, four hundred fifty-two".