20530412140 has 48 divisors (see below), whose sum is σ = 49329467712. Its totient is φ = 7030930176.

The previous prime is 20530412131. The next prime is 20530412153. The reversal of 20530412140 is 4121403502.

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, 39174 + ... + 206386.

It is an arithmetic number, because the mean of its divisors is an integer number (1027697244).

Almost surely, 2^20530412140 is an apocalyptic number.

20530412140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20530412140 is an abundant number, since it is smaller than the sum of its proper divisors (28799055572).

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

20530412140 is a wasteful number, since it uses less digits than its factorization.

20530412140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168106 (or 168104 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20530412140 its reverse (4121403502), we get a palindrome (24651815642).

The spelling of 20530412140 in words is "twenty billion, five hundred thirty million, four hundred twelve thousand, one hundred forty".