3155969216 has 56 divisors (see below), whose sum is σ = 6642969696. Its totient is φ = 1482485760.

The previous prime is 3155969213. The next prime is 3155969239. The reversal of 3155969216 is 6129695513.

It is not an unprimeable number, because it can be changed into a prime (3155969213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684230 + ... + 688826.

Almost surely, 2^3155969216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155969216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3321484848).

3155969216 is an abundant number, since it is smaller than the sum of its proper divisors (3487000480).

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

3155969216 is a wasteful number, since it uses less digits than its factorization.

3155969216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257 (or 5247 counting only the distinct ones).

The product of its digits is 437400, while the sum is 47.

The square root of 3155969216 is about 56178.0136352292. The cubic root of 3155969216 is about 1466.8225777323.

The spelling of 3155969216 in words is "three billion, one hundred fifty-five million, nine hundred sixty-nine thousand, two hundred sixteen".