266653461613136 has 80 divisors (see below), whose sum is σ = 570213784815360. Its totient is φ = 120048957550080.

The previous prime is 266653461613129. The next prime is 266653461613151. The reversal of 266653461613136 is 631316164356662.

It is a happy number.

It is a super-2 number, since 2×266653461613136² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96393335 + ... + 99121046.

It is an arithmetic number, because the mean of its divisors is an integer number (7127672310192).

Almost surely, 2^{266653461613136} is an apocalyptic number.

266653461613136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

266653461613136 is an abundant number, since it is smaller than the sum of its proper divisors (303560323202224).

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

266653461613136 is a wasteful number, since it uses less digits than its factorization.

266653461613136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195514564 (or 195514558 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 59.

The spelling of 266653461613136 in words is "two hundred sixty-six trillion, six hundred fifty-three billion, four hundred sixty-one million, six hundred thirteen thousand, one hundred thirty-six".