211636104542 has 16 divisors (see below), whose sum is σ = 321557623200. Its totient is φ = 104457448800.

The previous prime is 211636104509. The next prime is 211636104599. The reversal of 211636104542 is 245401636112.

It is a congruent number.

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, 1745834 + ... + 1863117.

It is an arithmetic number, because the mean of its divisors is an integer number (20097351450).

Almost surely, 2^211636104542 is an apocalyptic number.

211636104542 is a deficient number, since it is larger than the sum of its proper divisors (109921518658).

211636104542 is a wasteful number, since it uses less digits than its factorization.

211636104542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609331.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 211636104542 in words is "two hundred eleven billion, six hundred thirty-six million, one hundred four thousand, five hundred forty-two".