266220557241 has 8 divisors (see below), whose sum is σ = 366411089664. Its totient is φ = 171755198160.

The previous prime is 266220557233. The next prime is 266220557249. The reversal of 266220557241 is 142755022662.

It is an interprime number because it is at equal distance from previous prime (266220557233) and next prime (266220557249).

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

It is not a de Polignac number, because 266220557241 - 2³ = 266220557233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266220557193 and 266220557202.

It is not an unprimeable number, because it can be changed into a prime (266220557249) 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, 1431293226 + ... + 1431293411.

It is an arithmetic number, because the mean of its divisors is an integer number (45801386208).

Almost surely, 2^266220557241 is an apocalyptic number.

It is an amenable number.

266220557241 is a deficient number, since it is larger than the sum of its proper divisors (100190532423).

266220557241 is a wasteful number, since it uses less digits than its factorization.

266220557241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862586671.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 266220557241 in words is "two hundred sixty-six billion, two hundred twenty million, five hundred fifty-seven thousand, two hundred forty-one".