266565612150 has 96 divisors (see below), whose sum is σ = 736369610400. Its totient is φ = 70906752000.

The previous prime is 266565612149. The next prime is 266565612199. The reversal of 266565612150 is 51216565662.

266565612150 is a `hidden beast` number, since 2 + 6 + 6 + 565 + 61 + 21 + 5 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 266565612096 and 266565612105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295146 + ... + 787554.

It is an arithmetic number, because the mean of its divisors is an integer number (7670516775).

Almost surely, 2^266565612150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266565612150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368184805200).

266565612150 is an abundant number, since it is smaller than the sum of its proper divisors (469803998250).

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

266565612150 is a wasteful number, since it uses less digits than its factorization.

266565612150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492831 (or 492820 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 266565612150 in words is "two hundred sixty-six billion, five hundred sixty-five million, six hundred twelve thousand, one hundred fifty".