642032554022 has 16 divisors (see below), whose sum is σ = 981309987072. Its totient is φ = 314930341440.

The previous prime is 642032554021. The next prime is 642032554039. The reversal of 642032554022 is 220455230246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642032554021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899978 + ... + 1447074.

It is an arithmetic number, because the mean of its divisors is an integer number (61331874192).

Almost surely, 2^642032554022 is an apocalyptic number.

642032554022 is a deficient number, since it is larger than the sum of its proper divisors (339277433050).

642032554022 is a wasteful number, since it uses less digits than its factorization.

642032554022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558223.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 642032554022 its reverse (220455230246), we get a palindrome (862487784268).

The spelling of 642032554022 in words is "six hundred forty-two billion, thirty-two million, five hundred fifty-four thousand, twenty-two".