266101061636 has 24 divisors (see below), whose sum is σ = 477228454584. Its totient is φ = 129752709120.

The previous prime is 266101061609. The next prime is 266101061683. The reversal of 266101061636 is 636160101662.

It can be written as a sum of positive squares in 4 ways, for example, as 75355740100 + 190745321536 = 274510^2 + 436744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266101061636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77516 + ... + 733628.

It is an arithmetic number, because the mean of its divisors is an integer number (19884518941).

Almost surely, 2^266101061636 is an apocalyptic number.

It is an amenable number.

266101061636 is a deficient number, since it is larger than the sum of its proper divisors (211127392948).

266101061636 is a wasteful number, since it uses less digits than its factorization.

266101061636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658631 (or 658629 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 266101061636 in words is "two hundred sixty-six billion, one hundred one million, sixty-one thousand, six hundred thirty-six".