20352112612040 has 64 divisors (see below), whose sum is σ = 49963803246720. Its totient is φ = 7399491520000.

The previous prime is 20352112612019. The next prime is 20352112612057. The reversal of 20352112612040 is 4021621125302.

It is a junction number, because it is equal to n+sod(n) for n = 20352112611994 and 20352112612012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434356 + ... + 6539235.

It is an arithmetic number, because the mean of its divisors is an integer number (780684425730).

Almost surely, 2^{20352112612040} is an apocalyptic number.

20352112612040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352112612040 is an abundant number, since it is smaller than the sum of its proper divisors (29611690634680).

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

20352112612040 is a wasteful number, since it uses less digits than its factorization.

20352112612040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979414 (or 7979410 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 20352112612040 its reverse (4021621125302), we get a palindrome (24373733737342).

The spelling of 20352112612040 in words is "twenty trillion, three hundred fifty-two billion, one hundred twelve million, six hundred twelve thousand, forty".