266502061 has 8 divisors (see below), whose sum is σ = 305760960. Its totient is φ = 227539968.

The previous prime is 266502053. The next prime is 266502101. The reversal of 266502061 is 160205662.

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

It is a cyclic number.

It is not a de Polignac number, because 266502061 - 2³ = 266502053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266502001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72271 + ... + 75868.

It is an arithmetic number, because the mean of its divisors is an integer number (38220120).

Almost surely, 2^266502061 is an apocalyptic number.

It is an amenable number.

266502061 is a deficient number, since it is larger than the sum of its proper divisors (39258899).

266502061 is a wasteful number, since it uses less digits than its factorization.

266502061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148403.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 266502061 is about 16324.8908419015. The cubic root of 266502061 is about 643.5271249579.

The spelling of 266502061 in words is "two hundred sixty-six million, five hundred two thousand, sixty-one".