212339606545 has 32 divisors (see below), whose sum is σ = 285698088576. Its totient is φ = 150142694400.

The previous prime is 212339606527. The next prime is 212339606551. The reversal of 212339606545 is 545606933212.

It is not a de Polignac number, because 212339606545 - 2⁷ = 212339606417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212339606495 and 212339606504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2731302 + ... + 2807968.

It is an arithmetic number, because the mean of its divisors is an integer number (8928065268).

Almost surely, 2^212339606545 is an apocalyptic number.

It is an amenable number.

212339606545 is a deficient number, since it is larger than the sum of its proper divisors (73358482031).

212339606545 is a wasteful number, since it uses less digits than its factorization.

212339606545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78081.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 212339606545 in words is "two hundred twelve billion, three hundred thirty-nine million, six hundred six thousand, five hundred forty-five".