212142616555 has 16 divisors (see below), whose sum is σ = 256158302400. Its totient is φ = 168657310080.

The previous prime is 212142616421. The next prime is 212142616573. The reversal of 212142616555 is 555616241212.

It is not a de Polignac number, because 212142616555 - 2⁹ = 212142616043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1211226 + ... + 1375264.

It is an arithmetic number, because the mean of its divisors is an integer number (16009893900).

Almost surely, 2^212142616555 is an apocalyptic number.

212142616555 is a deficient number, since it is larger than the sum of its proper divisors (44015685845).

212142616555 is a wasteful number, since it uses less digits than its factorization.

212142616555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165654.

The product of its digits is 144000, while the sum is 40.

Adding to 212142616555 its reverse (555616241212), we get a palindrome (767758857767).

The spelling of 212142616555 in words is "two hundred twelve billion, one hundred forty-two million, six hundred sixteen thousand, five hundred fifty-five".