212366641542 has 32 divisors (see below), whose sum is σ = 463455264384. Its totient is φ = 64338268800.

The previous prime is 212366641441. The next prime is 212366641567. The reversal of 212366641542 is 245146663212.

It is a happy number.

212366641542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212366641494 and 212366641503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99448 + ... + 659259.

It is an arithmetic number, because the mean of its divisors is an integer number (14482977012).

Almost surely, 2^212366641542 is an apocalyptic number.

212366641542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212366641542 is an abundant number, since it is smaller than the sum of its proper divisors (251088622842).

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

212366641542 is a wasteful number, since it uses less digits than its factorization.

212366641542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762964.

The product of its digits is 414720, while the sum is 42.

The spelling of 212366641542 in words is "two hundred twelve billion, three hundred sixty-six million, six hundred forty-one thousand, five hundred forty-two".