20110545040 has 80 divisors (see below), whose sum is σ = 47072344320. Its totient is φ = 7990133760.

The previous prime is 20110545011. The next prime is 20110545043. The reversal of 20110545040 is 4054501102.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (20110545043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12135892 + ... + 12137548.

It is an arithmetic number, because the mean of its divisors is an integer number (588404304).

Almost surely, 2^20110545040 is an apocalyptic number.

20110545040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110545040 is an abundant number, since it is smaller than the sum of its proper divisors (26961799280).

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

20110545040 is a wasteful number, since it uses less digits than its factorization.

20110545040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600 (or 2594 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 20110545040 in words is "twenty billion, one hundred ten million, five hundred forty-five thousand, forty".