212380651165 has 16 divisors (see below), whose sum is σ = 266188311936. Its totient is φ = 162364100800.

The previous prime is 212380651129. The next prime is 212380651181. The reversal of 212380651165 is 561156083212.

It is not a de Polignac number, because 212380651165 - 2¹⁵ = 212380618397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 748291 + ... + 992320.

It is an arithmetic number, because the mean of its divisors is an integer number (16636769496).

Almost surely, 2^212380651165 is an apocalyptic number.

It is an amenable number.

212380651165 is a deficient number, since it is larger than the sum of its proper divisors (53807660771).

212380651165 is a wasteful number, since it uses less digits than its factorization.

212380651165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741700.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 212380651165 in words is "two hundred twelve billion, three hundred eighty million, six hundred fifty-one thousand, one hundred sixty-five".