211690140706 has 16 divisors (see below), whose sum is σ = 366778640160. Its totient is φ = 90562626880.

The previous prime is 211690140691. The next prime is 211690140799. The reversal of 211690140706 is 607041096112.

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 7 ways as a sum of consecutive naturals, for example, 283007836 + ... + 283008583.

It is an arithmetic number, because the mean of its divisors is an integer number (22923665010).

Almost surely, 2^211690140706 is an apocalyptic number.

211690140706 is a deficient number, since it is larger than the sum of its proper divisors (155088499454).

211690140706 is a wasteful number, since it uses less digits than its factorization.

211690140706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566016449.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 211690140706 in words is "two hundred eleven billion, six hundred ninety million, one hundred forty thousand, seven hundred six".