20435110040000 has 70 divisors (see below), whose sum is σ = 50672431587624. Its totient is φ = 8174044000000.

The previous prime is 20435110039979. The next prime is 20435110040029. The reversal of 20435110040000 is 4001153402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 255398876 + ... + 255478875.

Almost surely, 2^{20435110040000} is an apocalyptic number.

20435110040000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435110040000 is an abundant number, since it is smaller than the sum of its proper divisors (30237321547624).

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

20435110040000 is an frugal number, since it uses more digits than its factorization.

20435110040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510877783 (or 510877758 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20435110040000 its reverse (4001153402), we get a palindrome (20439111193402).

The spelling of 20435110040000 in words is "twenty trillion, four hundred thirty-five billion, one hundred ten million, forty thousand".