212053420562665 has 32 divisors (see below), whose sum is σ = 279403021088640. Its totient is φ = 153220007539200.

The previous prime is 212053420562653. The next prime is 212053420562713. The reversal of 212053420562665 is 566265024350212.

It is not a de Polignac number, because 212053420562665 - 2⁹ = 212053420562153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9453514 + ... + 22660003.

It is an arithmetic number, because the mean of its divisors is an integer number (8731344409020).

Almost surely, 2^{212053420562665} is an apocalyptic number.

It is an amenable number.

212053420562665 is a deficient number, since it is larger than the sum of its proper divisors (67349600525975).

212053420562665 is a wasteful number, since it uses less digits than its factorization.

212053420562665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32114313.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 212053420562665 in words is "two hundred twelve trillion, fifty-three billion, four hundred twenty million, five hundred sixty-two thousand, six hundred sixty-five".