1266345240536 has 32 divisors (see below), whose sum is σ = 2397175074000. Its totient is φ = 627101454336.

The previous prime is 1266345240533. The next prime is 1266345240541. The reversal of 1266345240536 is 6350425436621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266345240533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355280 + ... + 3713568.

Almost surely, 2^{1266345240536} is an apocalyptic number.

It is an amenable number.

1266345240536 is a deficient number, since it is larger than the sum of its proper divisors (1130829833464).

1266345240536 is a wasteful number, since it uses less digits than its factorization.

1266345240536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362531 (or 362527 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 1266345240536 in words is "one trillion, two hundred sixty-six billion, three hundred forty-five million, two hundred forty thousand, five hundred thirty-six".