211542605061416 has 16 divisors (see below), whose sum is σ = 396847579751700. Its totient is φ = 105716583794304.

The previous prime is 211542605061397. The next prime is 211542605061419. The reversal of 211542605061416 is 614160506245112.

It can be written as a sum of positive squares in 2 ways, for example, as 209301206824516 + 2241398236900 = 14467246^2 + 1497130^2 .

It is a super-2 number, since 2×211542605061416² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211542605061419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6839825621 + ... + 6839856548.

Almost surely, 2^{211542605061416} is an apocalyptic number.

It is an amenable number.

211542605061416 is a deficient number, since it is larger than the sum of its proper divisors (185304974690284).

211542605061416 is a wasteful number, since it uses less digits than its factorization.

211542605061416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13679684108 (or 13679684104 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 211542605061416 in words is "two hundred eleven trillion, five hundred forty-two billion, six hundred five million, sixty-one thousand, four hundred sixteen".