212106166415 has 64 divisors (see below), whose sum is σ = 300714422400. Its totient is φ = 141590937600.

The previous prime is 212106166387. The next prime is 212106166421. The reversal of 212106166415 is 514661601212.

It is not a de Polignac number, because 212106166415 - 2⁸ = 212106166159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142447991 + ... + 142449479.

It is an arithmetic number, because the mean of its divisors is an integer number (4698662850).

Almost surely, 2^212106166415 is an apocalyptic number.

212106166415 is a deficient number, since it is larger than the sum of its proper divisors (88608255985).

212106166415 is a wasteful number, since it uses less digits than its factorization.

212106166415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 17280, while the sum is 35.

Adding to 212106166415 its reverse (514661601212), we get a palindrome (726767767627).

The spelling of 212106166415 in words is "two hundred twelve billion, one hundred six million, one hundred sixty-six thousand, four hundred fifteen".