2145505226232 has 64 divisors (see below), whose sum is σ = 5509059858720. Its totient is φ = 695797820928.

The previous prime is 2145505226219. The next prime is 2145505226233. The reversal of 2145505226232 is 2326225055412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145505226233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17019658 + ... + 17145254.

Almost surely, 2^{2145505226232} is an apocalyptic number.

It is an amenable number.

2145505226232 is an abundant number, since it is smaller than the sum of its proper divisors (3363554632488).

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

2145505226232 is a wasteful number, since it uses less digits than its factorization.

2145505226232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144880 (or 144876 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 2145505226232 in words is "two trillion, one hundred forty-five billion, five hundred five million, two hundred twenty-six thousand, two hundred thirty-two".