212270667663 has 16 divisors (see below), whose sum is σ = 284300902400. Its totient is φ = 140877269280.

The previous prime is 212270667647. The next prime is 212270667673. The reversal of 212270667663 is 366766072212.

It is not a de Polignac number, because 212270667663 - 2⁴ = 212270667647 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 (212270667673) 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, 6930978 + ... + 6961536.

It is an arithmetic number, because the mean of its divisors is an integer number (17768806400).

Almost surely, 2^212270667663 is an apocalyptic number.

212270667663 is a deficient number, since it is larger than the sum of its proper divisors (72030234737).

212270667663 is a wasteful number, since it uses less digits than its factorization.

212270667663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40902.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 212270667663 in words is "two hundred twelve billion, two hundred seventy million, six hundred sixty-seven thousand, six hundred sixty-three".