642226161562 has 16 divisors (see below), whose sum is σ = 990002201760. Its totient is φ = 312236423568.

The previous prime is 642226161559. The next prime is 642226161607. The reversal of 642226161562 is 265161622246.

It is a happy number.

642226161562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2631328 + ... + 2865019.

It is an arithmetic number, because the mean of its divisors is an integer number (61875137610).

Almost surely, 2^642226161562 is an apocalyptic number.

642226161562 is a deficient number, since it is larger than the sum of its proper divisors (347776040198).

642226161562 is a wasteful number, since it uses less digits than its factorization.

642226161562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497965.

The product of its digits is 414720, while the sum is 43.

The spelling of 642226161562 in words is "six hundred forty-two billion, two hundred twenty-six million, one hundred sixty-one thousand, five hundred sixty-two".