6911420866560 has 504 divisors, whose sum is σ = 27869734220796. Its totient is φ = 1579749212160.

The previous prime is 6911420866547. The next prime is 6911420866607. The reversal of 6911420866560 is 656680241196.

6911420866560 is a `hidden beast` number, since 6 + 9 + 1 + 14 + 2 + 0 + 8 + 66 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6638084296704 + 273336569856 = 2576448^2 + 522816^2 .

It is a tau number, because it is divible by the number of its divisors (504).

It is a junction number, because it is equal to n+sod(n) for n = 6911420866497 and 6911420866506.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17872050 + ... + 18254670.

Almost surely, 2^{6911420866560} is an apocalyptic number.

6911420866560 is a gapful number since it is divisible by the number (60) 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 6911420866560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13934867110398).

6911420866560 is an abundant number, since it is smaller than the sum of its proper divisors (20958313354236).

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

6911420866560 is a wasteful number, since it uses less digits than its factorization.

6911420866560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382672 (or 382638 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 6911420866560 in words is "six trillion, nine hundred eleven billion, four hundred twenty million, eight hundred sixty-six thousand, five hundred sixty".