1260611020720 has 20 divisors (see below), whose sum is σ = 2930920623360. Its totient is φ = 504244408256.

The previous prime is 1260611020681. The next prime is 1260611020787. The reversal of 1260611020720 is 270201160621.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7878818800 + ... + 7878818959.

It is an arithmetic number, because the mean of its divisors is an integer number (146546031168).

Almost surely, 2^{1260611020720} is an apocalyptic number.

1260611020720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260611020720 is an abundant number, since it is smaller than the sum of its proper divisors (1670309602640).

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

1260611020720 is a wasteful number, since it uses less digits than its factorization.

1260611020720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757637772 (or 15757637766 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 1260611020720 in words is "one trillion, two hundred sixty billion, six hundred eleven million, twenty thousand, seven hundred twenty".