266721094 has 8 divisors (see below), whose sum is σ = 404206488. Its totient is φ = 131985600.

The previous prime is 266721089. The next prime is 266721101. The reversal of 266721094 is 490127662.

266721094 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×266721094² = 142280283969113672, which contains 22 as substring.

It is a congruent number.

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, 687232 + ... + 687619.

It is an arithmetic number, because the mean of its divisors is an integer number (50525811).

Almost surely, 2^266721094 is an apocalyptic number.

266721094 is a deficient number, since it is larger than the sum of its proper divisors (137485394).

266721094 is a wasteful number, since it uses less digits than its factorization.

266721094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374950.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 266721094 is about 16331.5980234636. The cubic root of 266721094 is about 643.7033776020.

The spelling of 266721094 in words is "two hundred sixty-six million, seven hundred twenty-one thousand, ninety-four".