4155499722 has 64 divisors (see below), whose sum is σ = 9204668928. Its totient is φ = 1240200000.

The previous prime is 4155499693. The next prime is 4155499727. The reversal of 4155499722 is 2279945514.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4155499727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276597 + ... + 1279847.

It is an arithmetic number, because the mean of its divisors is an integer number (143822952).

Almost surely, 2^4155499722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4155499722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4602334464).

4155499722 is an abundant number, since it is smaller than the sum of its proper divisors (5049169206).

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

4155499722 is a wasteful number, since it uses less digits than its factorization.

4155499722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555.

The product of its digits is 907200, while the sum is 48.

The square root of 4155499722 is about 64463.1656219271. The cubic root of 4155499722 is about 1607.7101459863.

The spelling of 4155499722 in words is "four billion, one hundred fifty-five million, four hundred ninety-nine thousand, seven hundred twenty-two".