266770212 has 12 divisors (see below), whose sum is σ = 622463856. Its totient is φ = 88923400.

The previous prime is 266770199. The next prime is 266770223. The reversal of 266770212 is 212077662.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11115414 + ... + 11115437.

It is an arithmetic number, because the mean of its divisors is an integer number (51871988).

Almost surely, 2^266770212 is an apocalyptic number.

It is an amenable number.

266770212 is an abundant number, since it is smaller than the sum of its proper divisors (355693644).

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

266770212 is a wasteful number, since it uses less digits than its factorization.

266770212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22230858 (or 22230856 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 266770212 is about 16333.1017262491. The cubic root of 266770212 is about 643.7428888899.

The spelling of 266770212 in words is "two hundred sixty-six million, seven hundred seventy thousand, two hundred twelve".