11770780071680 has 72 divisors (see below), whose sum is σ = 32222510470752. Its totient is φ = 4035696021504.

The previous prime is 11770780071671. The next prime is 11770780071703. The reversal of 11770780071680 is 8617008707711.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656842607 + ... + 656860526.

Almost surely, 2^{11770780071680} is an apocalyptic number.

11770780071680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11770780071680 is an abundant number, since it is smaller than the sum of its proper divisors (20451730399072).

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

11770780071680 is an equidigital number, since it uses as much as digits as its factorization.

11770780071680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313703161 (or 1313703147 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 53.

The spelling of 11770780071680 in words is "eleven trillion, seven hundred seventy billion, seven hundred eighty million, seventy-one thousand, six hundred eighty".