212520160346 has 16 divisors (see below), whose sum is σ = 344141183400. Its totient is φ = 97846403328.

The previous prime is 212520160219. The next prime is 212520160409. The reversal of 212520160346 is 643061025212.

It can be written as a sum of positive squares in 4 ways, for example, as 144771879121 + 67748281225 = 380489^2 + 260285^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9981851 + ... + 10003118.

Almost surely, 2^212520160346 is an apocalyptic number.

212520160346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212520160346 is a deficient number, since it is larger than the sum of its proper divisors (131621023054).

212520160346 is a wasteful number, since it uses less digits than its factorization.

212520160346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19985393.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 212520160346 its reverse (643061025212), we get a palindrome (855581185558).

The spelling of 212520160346 in words is "two hundred twelve billion, five hundred twenty million, one hundred sixty thousand, three hundred forty-six".