212566153137 has 16 divisors (see below), whose sum is σ = 323177500800. Its totient is φ = 123115237632.

The previous prime is 212566153109. The next prime is 212566153141. The reversal of 212566153137 is 731351665212.

It is not a de Polignac number, because 212566153137 - 2¹¹ = 212566151089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212566153537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160305637 + ... + 160306962.

It is an arithmetic number, because the mean of its divisors is an integer number (20198593800).

Almost surely, 2^212566153137 is an apocalyptic number.

It is an amenable number.

212566153137 is a deficient number, since it is larger than the sum of its proper divisors (110611347663).

212566153137 is a wasteful number, since it uses less digits than its factorization.

212566153137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320612632.

The product of its digits is 226800, while the sum is 42.

The spelling of 212566153137 in words is "two hundred twelve billion, five hundred sixty-six million, one hundred fifty-three thousand, one hundred thirty-seven".