212245165404 has 60 divisors (see below), whose sum is σ = 558842638200. Its totient is φ = 70239392352.

The previous prime is 212245165369. The next prime is 212245165441. The reversal of 212245165404 is 404561542212.

212245165404 is a `hidden beast` number, since 2 + 1 + 2 + 245 + 1 + 6 + 5 + 404 = 666.

212245165404 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2311359 + ... + 2401430.

It is an arithmetic number, because the mean of its divisors is an integer number (9314043970).

Almost surely, 2^212245165404 is an apocalyptic number.

It is an amenable number.

212245165404 is an abundant number, since it is smaller than the sum of its proper divisors (346597472796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212245165404 is a wasteful number, since it uses less digits than its factorization.

212245165404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712944 (or 4712933 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 212245165404 in words is "two hundred twelve billion, two hundred forty-five million, one hundred sixty-five thousand, four hundred four".