266651055 has 32 divisors (see below), whose sum is σ = 517144320. Its totient is φ = 129284640.

The previous prime is 266651053. The next prime is 266651059. The reversal of 266651055 is 550156662.

It is a happy number.

It is not a de Polignac number, because 266651055 - 2¹ = 266651053 is a prime.

It is a super-2 number, since 2×266651055² = 142205570265226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266651053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88297 + ... + 91266.

It is an arithmetic number, because the mean of its divisors is an integer number (16160760).

Almost surely, 2^266651055 is an apocalyptic number.

266651055 is a deficient number, since it is larger than the sum of its proper divisors (250493265).

266651055 is a wasteful number, since it uses less digits than its factorization.

266651055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179588 (or 179582 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 266651055 is about 16329.4536038411. The cubic root of 266651055 is about 643.6470287433.

The spelling of 266651055 in words is "two hundred sixty-six million, six hundred fifty-one thousand, fifty-five".