266652256431145 has 32 divisors (see below), whose sum is σ = 346800340147968. Its totient is φ = 195653310997248.

The previous prime is 266652256431109. The next prime is 266652256431217. The reversal of 266652256431145 is 541134652256662.

It is a de Polignac number, because none of the positive numbers 2^k-266652256431145 is a prime.

It is a super-2 number, since 2×266652256431145² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266652256431145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435110532 + ... + 435722938.

It is an arithmetic number, because the mean of its divisors is an integer number (10837510629624).

Almost surely, 2^{266652256431145} is an apocalyptic number.

It is an amenable number.

266652256431145 is a deficient number, since it is larger than the sum of its proper divisors (80148083716823).

266652256431145 is a wasteful number, since it uses less digits than its factorization.

266652256431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655249.

The product of its digits is 62208000, while the sum is 58.

The spelling of 266652256431145 in words is "two hundred sixty-six trillion, six hundred fifty-two billion, two hundred fifty-six million, four hundred thirty-one thousand, one hundred forty-five".