211540540354 has 64 divisors (see below), whose sum is σ = 389157592320. Its totient is φ = 84863243520.

The previous prime is 211540540283. The next prime is 211540540363. The reversal of 211540540354 is 453045045112.

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 31 ways as a sum of consecutive naturals, for example, 19972092 + ... + 19982680.

It is an arithmetic number, because the mean of its divisors is an integer number (6080587380).

Almost surely, 2^211540540354 is an apocalyptic number.

211540540354 is a deficient number, since it is larger than the sum of its proper divisors (177617051966).

211540540354 is a wasteful number, since it uses less digits than its factorization.

211540540354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 211540540354 its reverse (453045045112), we get a palindrome (664585585466).

The spelling of 211540540354 in words is "two hundred eleven billion, five hundred forty million, five hundred forty thousand, three hundred fifty-four".