212061035436557 has 16 divisors (see below), whose sum is σ = 213013464543360. Its totient is φ = 211109880800832.

The previous prime is 212061035436553. The next prime is 212061035436599. The reversal of 212061035436557 is 755634530160212.

It is a cyclic number.

It is not a de Polignac number, because 212061035436557 - 2² = 212061035436553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212061035436553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035414688 + ... + 2035518870.

It is an arithmetic number, because the mean of its divisors is an integer number (13313341533960).

Almost surely, 2^{212061035436557} is an apocalyptic number.

It is an amenable number.

212061035436557 is a deficient number, since it is larger than the sum of its proper divisors (952429106803).

212061035436557 is a wasteful number, since it uses less digits than its factorization.

212061035436557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110212.

The product of its (nonzero) digits is 4536000, while the sum is 50.

Adding to 212061035436557 its reverse (755634530160212), we get a palindrome (967695565596769).

The spelling of 212061035436557 in words is "two hundred twelve trillion, sixty-one billion, thirty-five million, four hundred thirty-six thousand, five hundred fifty-seven".