212173570164704 has 192 divisors, whose sum is σ = 447500342822400. Its totient is φ = 98798611372032.

The previous prime is 212173570164649. The next prime is 212173570164707. The reversal of 212173570164704 is 407461075371212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212173570164707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13983619262 + ... + 13983634434.

It is an arithmetic number, because the mean of its divisors is an integer number (2330730952200).

Almost surely, 2^{212173570164704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212173570164704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223750171411200).

212173570164704 is an abundant number, since it is smaller than the sum of its proper divisors (235326772657696).

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

212173570164704 is a wasteful number, since it uses less digits than its factorization.

212173570164704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17977 (or 17969 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 212173570164704 in words is "two hundred twelve trillion, one hundred seventy-three billion, five hundred seventy million, one hundred sixty-four thousand, seven hundred four".