20358553033428 has 48 divisors (see below), whose sum is σ = 47517941706816. Its totient is φ = 6784091677440.

The previous prime is 20358553033411. The next prime is 20358553033453. The reversal of 20358553033428 is 82433035585302.

It is a happy number.

It is a super-2 number, since 2×20358553033428² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 629480538 + ... + 629512878.

It is an arithmetic number, because the mean of its divisors is an integer number (989957118892).

Almost surely, 2^{20358553033428} is an apocalyptic number.

It is an amenable number.

20358553033428 is an abundant number, since it is smaller than the sum of its proper divisors (27159388673388).

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

20358553033428 is a wasteful number, since it uses less digits than its factorization.

20358553033428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46904 (or 46902 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 20358553033428 in words is "twenty trillion, three hundred fifty-eight billion, five hundred fifty-three million, thirty-three thousand, four hundred twenty-eight".