2145533461530 has 64 divisors (see below), whose sum is σ = 5162329411200. Its totient is φ = 570694164480.

The previous prime is 2145533461493. The next prime is 2145533461549. The reversal of 2145533461530 is 351643355412.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19202466 + ... + 19313874.

It is an arithmetic number, because the mean of its divisors is an integer number (80661397050).

Almost surely, 2^{2145533461530} is an apocalyptic number.

2145533461530 is an abundant number, since it is smaller than the sum of its proper divisors (3016795949670).

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

2145533461530 is a wasteful number, since it uses less digits than its factorization.

2145533461530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113039.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 2145533461530 in words is "two trillion, one hundred forty-five billion, five hundred thirty-three million, four hundred sixty-one thousand, five hundred thirty".