2045232045540 has 72 divisors (see below), whose sum is σ = 6433643536320. Its totient is φ = 545395210848.

The previous prime is 2045232045497. The next prime is 2045232045547. The reversal of 2045232045540 is 455402325402.

2045232045540 is a `hidden beast` number, since 2 + 0 + 4 + 52 + 3 + 20 + 45 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2045232045495 and 2045232045504.

It is not an unprimeable number, because it can be changed into a prime (2045232045547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210409960 + ... + 210419679.

Almost surely, 2^{2045232045540} is an apocalyptic number.

2045232045540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045232045540 is an abundant number, since it is smaller than the sum of its proper divisors (4388411490780).

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

2045232045540 is a wasteful number, since it uses less digits than its factorization.

2045232045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420829663 (or 420829649 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 2045232045540 in words is "two trillion, forty-five billion, two hundred thirty-two million, forty-five thousand, five hundred forty".