266611116033405 has 192 divisors, whose sum is σ = 559993081132800. Its totient is φ = 119302127493120.

The previous prime is 266611116033397. The next prime is 266611116033443. The reversal of 266611116033405 is 504330611116662.

It is not a de Polignac number, because 266611116033405 - 2³ = 266611116033397 is a prime.

It is a super-2 number, since 2×266611116033405² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1524022981 + ... + 1524197909.

It is an arithmetic number, because the mean of its divisors is an integer number (2916630630900).

Almost surely, 2^{266611116033405} is an apocalyptic number.

It is an amenable number.

266611116033405 is an abundant number, since it is smaller than the sum of its proper divisors (293381965099395).

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

266611116033405 is a wasteful number, since it uses less digits than its factorization.

266611116033405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181053 (or 181034 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 266611116033405 in words is "two hundred sixty-six trillion, six hundred eleven billion, one hundred sixteen million, thirty-three thousand, four hundred five".