20135703320432 has 80 divisors (see below), whose sum is σ = 47406445793280. Its totient is φ = 8087981067264.

The previous prime is 20135703320419. The next prime is 20135703320471. The reversal of 20135703320432 is 23402330753102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20135703320392 and 20135703320401.

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, 21669368 + ... + 22579479.

It is an arithmetic number, because the mean of its divisors is an integer number (592580572416).

Almost surely, 2^{20135703320432} is an apocalyptic number.

It is an amenable number.

20135703320432 is an abundant number, since it is smaller than the sum of its proper divisors (27270742472848).

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

20135703320432 is a wasteful number, since it uses less digits than its factorization.

20135703320432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44249118 (or 44249112 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 20135703320432 in words is "twenty trillion, one hundred thirty-five billion, seven hundred three million, three hundred twenty thousand, four hundred thirty-two".