212626051506 has 48 divisors (see below), whose sum is σ = 506527976448. Its totient is φ = 63924789600.

The previous prime is 212626051457. The next prime is 212626051511. The reversal of 212626051506 is 605150626212.

212626051506 is a `hidden beast` number, since 2 + 12 + 626 + 0 + 5 + 15 + 0 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4202685 + ... + 4252976.

It is an arithmetic number, because the mean of its divisors is an integer number (10552666176).

Almost surely, 2^212626051506 is an apocalyptic number.

212626051506 is an abundant number, since it is smaller than the sum of its proper divisors (293901924942).

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

212626051506 is a wasteful number, since it uses less digits than its factorization.

212626051506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455807 (or 8455804 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 212626051506 its reverse (605150626212), we get a palindrome (817776677718).

The spelling of 212626051506 in words is "two hundred twelve billion, six hundred twenty-six million, fifty-one thousand, five hundred six".