3911229966 has 64 divisors (see below), whose sum is σ = 9311155200. Its totient is φ = 1071947520.

The previous prime is 3911229943. The next prime is 3911229977. The reversal of 3911229966 is 6699221193.

It is a super-2 number, since 2×3911229966² = 30595439693872722312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92610 + ... + 128058.

It is an arithmetic number, because the mean of its divisors is an integer number (145486800).

Almost surely, 2^3911229966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3911229966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4655577600).

3911229966 is an abundant number, since it is smaller than the sum of its proper divisors (5399925234).

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

3911229966 is a wasteful number, since it uses less digits than its factorization.

3911229966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35569.

The product of its digits is 314928, while the sum is 48.

The square root of 3911229966 is about 62539.8270384561. The cubic root of 3911229966 is about 1575.5702936531.

The spelling of 3911229966 in words is "three billion, nine hundred eleven million, two hundred twenty-nine thousand, nine hundred sixty-six".