266610960 has 480 divisors, whose sum is σ = 1170460800. Its totient is φ = 55157760.

The previous prime is 266610941. The next prime is 266610977. The reversal of 266610960 is 69016662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1164126 + ... + 1164354.

It is an arithmetic number, because the mean of its divisors is an integer number (2438460).

Almost surely, 2^266610960 is an apocalyptic number.

266610960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266610960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585230400).

266610960 is an abundant number, since it is smaller than the sum of its proper divisors (903849840).

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

266610960 is a wasteful number, since it uses less digits than its factorization.

266610960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 266610960 is about 16328.2258681095. The cubic root of 266610960 is about 643.6147664530.

The spelling of 266610960 in words is "two hundred sixty-six million, six hundred ten thousand, nine hundred sixty".