266004135654345 has 96 divisors (see below), whose sum is σ = 538445300649984. Its totient is φ = 124811324452800.

The previous prime is 266004135654281. The next prime is 266004135654359. The reversal of 266004135654345 is 543456531400662.

266004135654345 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 0 + 4 + 1 + 3 + 56 + 543 + 45 = 666.

It is not a de Polignac number, because 266004135654345 - 2⁶ = 266004135654281 is a prime.

It is a super-2 number, since 2×266004135654345² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266004135654291 and 266004135654300.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 320602467 + ... + 321431096.

It is an arithmetic number, because the mean of its divisors is an integer number (5608805215104).

Almost surely, 2^{266004135654345} is an apocalyptic number.

It is an amenable number.

266004135654345 is an abundant number, since it is smaller than the sum of its proper divisors (272441164995639).

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

266004135654345 is a wasteful number, since it uses less digits than its factorization.

266004135654345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642033625 (or 642033613 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 266004135654345 in words is "two hundred sixty-six trillion, four billion, one hundred thirty-five million, six hundred fifty-four thousand, three hundred forty-five".