1266535569460 has 24 divisors (see below), whose sum is σ = 3039685367040. Its totient is φ = 434240766624.

The previous prime is 1266535569449. The next prime is 1266535569469. The reversal of 1266535569460 is 649655356621.

It is a super-2 number, since 2×1266535569460² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1266535569395 and 1266535569404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266535569469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4523341180 + ... + 4523341459.

It is an arithmetic number, because the mean of its divisors is an integer number (126653556960).

Almost surely, 2^{1266535569460} is an apocalyptic number.

1266535569460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266535569460 is an abundant number, since it is smaller than the sum of its proper divisors (1773149797580).

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

1266535569460 is a wasteful number, since it uses less digits than its factorization.

1266535569460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046682655 (or 9046682653 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 58.

The spelling of 1266535569460 in words is "one trillion, two hundred sixty-six billion, five hundred thirty-five million, five hundred sixty-nine thousand, four hundred sixty".