1266740024100 has 144 divisors (see below), whose sum is σ = 3752244216000. Its totient is φ = 329842603520.

The previous prime is 1266740024087. The next prime is 1266740024141. The reversal of 1266740024100 is 14200476621.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2397142 + ... + 2877458.

It is an arithmetic number, because the mean of its divisors is an integer number (26057251500).

Almost surely, 2^{1266740024100} is an apocalyptic number.

1266740024100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266740024100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876122108000).

1266740024100 is an abundant number, since it is smaller than the sum of its proper divisors (2485504191900).

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

1266740024100 is a wasteful number, since it uses less digits than its factorization.

1266740024100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480542 (or 480535 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 1266740024100 in words is "one trillion, two hundred sixty-six billion, seven hundred forty million, twenty-four thousand, one hundred".