142211640906 has 24 divisors (see below), whose sum is σ = 321521971680. Its totient is φ = 45342841896.

The previous prime is 142211640869. The next prime is 142211640911. The reversal of 142211640906 is 609046112241.

142211640906 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 1 + 1 + 640 + 9 + 0 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171752776 + ... + 171753603.

It is an arithmetic number, because the mean of its divisors is an integer number (13396748820).

Almost surely, 2^142211640906 is an apocalyptic number.

142211640906 is an abundant number, since it is smaller than the sum of its proper divisors (179310330774).

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

142211640906 is a wasteful number, since it uses less digits than its factorization.

142211640906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343506410 (or 343506407 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 142211640906 in words is "one hundred forty-two billion, two hundred eleven million, six hundred forty thousand, nine hundred six".