212260166664 has 96 divisors (see below), whose sum is σ = 664770899520. Its totient is φ = 55980699264.

The previous prime is 212260166647. The next prime is 212260166683. The reversal of 212260166664 is 466661062212.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6926764 + ... + 6957339.

It is an arithmetic number, because the mean of its divisors is an integer number (6924696870).

Almost surely, 2^212260166664 is an apocalyptic number.

212260166664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212260166664 is an abundant number, since it is smaller than the sum of its proper divisors (452510732856).

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

212260166664 is a wasteful number, since it uses less digits than its factorization.

212260166664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884139 (or 13884128 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 212260166664 in words is "two hundred twelve billion, two hundred sixty million, one hundred sixty-six thousand, six hundred sixty-four".