1316261600780 has 96 divisors (see below), whose sum is σ = 3163733475840. Its totient is φ = 450618094080.

The previous prime is 1316261600767. The next prime is 1316261600789. The reversal of 1316261600780 is 870061626131.

It is not an unprimeable number, because it can be changed into a prime (1316261600789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437149475 + ... + 437152485.

It is an arithmetic number, because the mean of its divisors is an integer number (32955557040).

Almost surely, 2^{1316261600780} is an apocalyptic number.

1316261600780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316261600780 is an abundant number, since it is smaller than the sum of its proper divisors (1847471875060).

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

1316261600780 is a wasteful number, since it uses less digits than its factorization.

1316261600780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6639 (or 6637 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 1316261600780 in words is "one trillion, three hundred sixteen billion, two hundred sixty-one million, six hundred thousand, seven hundred eighty".