20051451140 has 48 divisors (see below), whose sum is σ = 49147402752. Its totient is φ = 6728509056.

The previous prime is 20051451011. The next prime is 20051451209. The reversal of 20051451140 is 4115415002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1517087 + ... + 1530246.

It is an arithmetic number, because the mean of its divisors is an integer number (1023904224).

Almost surely, 2^20051451140 is an apocalyptic number.

20051451140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20051451140 is an abundant number, since it is smaller than the sum of its proper divisors (29095951612).

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

20051451140 is a wasteful number, since it uses less digits than its factorization.

20051451140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047396 (or 3047394 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 20051451140 its reverse (4115415002), we get a palindrome (24166866142).

The spelling of 20051451140 in words is "twenty billion, fifty-one million, four hundred fifty-one thousand, one hundred forty".