266400056536 has 64 divisors (see below), whose sum is σ = 526262568480. Its totient is φ = 126264821760.

The previous prime is 266400056521. The next prime is 266400056561. The reversal of 266400056536 is 635650004662.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 266400056492 and 266400056501.

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, 5026656 + ... + 5079376.

Almost surely, 2^266400056536 is an apocalyptic number.

It is an amenable number.

266400056536 is a deficient number, since it is larger than the sum of its proper divisors (259862511944).

266400056536 is a wasteful number, since it uses less digits than its factorization.

266400056536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53204 (or 53200 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 266400056536 in words is "two hundred sixty-six billion, four hundred million, fifty-six thousand, five hundred thirty-six".