266868153804 has 48 divisors (see below), whose sum is σ = 711834068736. Its totient is φ = 76228152000.

The previous prime is 266868153803. The next prime is 266868153901. The reversal of 266868153804 is 408351868662.

It is a super-2 number, since 2×266868153804² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266868153803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89007 + ... + 735974.

It is an arithmetic number, because the mean of its divisors is an integer number (14829876432).

Almost surely, 2^266868153804 is an apocalyptic number.

It is an amenable number.

266868153804 is an abundant number, since it is smaller than the sum of its proper divisors (444965914932).

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

266868153804 is a wasteful number, since it uses less digits than its factorization.

266868153804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828846 (or 828844 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 266868153804 in words is "two hundred sixty-six billion, eight hundred sixty-eight million, one hundred fifty-three thousand, eight hundred four".