2045653177920 has 112 divisors (see below), whose sum is σ = 7085398771008. Its totient is φ = 495915919360.

The previous prime is 2045653177907. The next prime is 2045653177949. The reversal of 2045653177920 is 297713565402.

It is a super-3 number, since 3×2045653177920³ (a number of 38 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 96848019 + ... + 96869138.

Almost surely, 2^{2045653177920} is an apocalyptic number.

2045653177920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045653177920 is an abundant number, since it is smaller than the sum of its proper divisors (5039745593088).

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

2045653177920 is a wasteful number, since it uses less digits than its factorization.

2045653177920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193717188 (or 193717178 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 2045653177920 in words is "two trillion, forty-five billion, six hundred fifty-three million, one hundred seventy-seven thousand, nine hundred twenty".