6941155680 has 240 divisors, whose sum is σ = 25095891744. Its totient is φ = 1805690880.

The previous prime is 6941155679. The next prime is 6941155687. The reversal of 6941155680 is 865511496.

6941155680 is a `hidden beast` number, since 6 + 9 + 4 + 11 + 556 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6941155687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 524829 + ... + 537891.

Almost surely, 2^6941155680 is an apocalyptic number.

6941155680 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 6941155680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12547945872).

6941155680 is an abundant number, since it is smaller than the sum of its proper divisors (18154736064).

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

6941155680 is a wasteful number, since it uses less digits than its factorization.

6941155680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131 (or 13114 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 6941155680 is about 83313.5984098634. The cubic root of 6941155680 is about 1907.5558477259. Note that the first 3 decimals are identical.

The spelling of 6941155680 in words is "six billion, nine hundred forty-one million, one hundred fifty-five thousand, six hundred eighty".