20432203501040 has 80 divisors (see below), whose sum is σ = 48864139923456. Its totient is φ = 7941019296000.

The previous prime is 20432203501019. The next prime is 20432203501051. The reversal of 20432203501040 is 4010530223402.

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

It is a super-2 number, since 2×20432203501040² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 14891636 + ... + 16205715.

Almost surely, 2^{20432203501040} is an apocalyptic number.

20432203501040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432203501040 is an abundant number, since it is smaller than the sum of its proper divisors (28431936422416).

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

20432203501040 is a wasteful number, since it uses less digits than its factorization.

20432203501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31097598 (or 31097592 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20432203501040 its reverse (4010530223402), we get a palindrome (24442733724442).

The spelling of 20432203501040 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, five hundred one thousand, forty".