2045640257332 has 12 divisors (see below), whose sum is σ = 4091280514720. Its totient is φ = 876702967416.

The previous prime is 2045640257329. The next prime is 2045640257341. The reversal of 2045640257332 is 2337520465402.

2045640257332 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36529290282 + ... + 36529290337.

Almost surely, 2^{2045640257332} is an apocalyptic number.

It is an amenable number.

2045640257332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2045640257332 is a wasteful number, since it uses less digits than its factorization.

2045640257332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73058580630 (or 73058580628 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 43.

The spelling of 2045640257332 in words is "two trillion, forty-five billion, six hundred forty million, two hundred fifty-seven thousand, three hundred thirty-two".