4066381960 has 64 divisors (see below), whose sum is σ = 9211838400. Its totient is φ = 1615493376.

The previous prime is 4066381951. The next prime is 4066381961. The reversal of 4066381960 is 691836604.

It is a super-2 number, since 2×4066381960² = 33070924489226883200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4066381961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5260134 + ... + 5260906.

It is an arithmetic number, because the mean of its divisors is an integer number (143934975).

Almost surely, 2^4066381960 is an apocalyptic number.

4066381960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066381960 is an abundant number, since it is smaller than the sum of its proper divisors (5145456440).

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

4066381960 is a wasteful number, since it uses less digits than its factorization.

4066381960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 4066381960 is about 63768.1892482451. The cubic root of 4066381960 is about 1596.1341514069.

The spelling of 4066381960 in words is "four billion, sixty-six million, three hundred eighty-one thousand, nine hundred sixty".