4401520161 has 4 divisors (see below), whose sum is σ = 5868693552. Its totient is φ = 2934346772.

The previous prime is 4401520159. The next prime is 4401520163. The reversal of 4401520161 is 1610251044.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4401520159) and next prime (4401520163).

It is a cyclic number.

It is not a de Polignac number, because 4401520161 - 2¹ = 4401520159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4401520163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733586691 + ... + 733586696.

It is an arithmetic number, because the mean of its divisors is an integer number (1467173388).

Almost surely, 2^4401520161 is an apocalyptic number.

It is an amenable number.

4401520161 is a deficient number, since it is larger than the sum of its proper divisors (1467173391).

4401520161 is a wasteful number, since it uses less digits than its factorization.

4401520161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467173390.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 4401520161 is about 66343.9534622410. The cubic root of 4401520161 is about 1638.8312316306.

The spelling of 4401520161 in words is "four billion, four hundred one million, five hundred twenty thousand, one hundred sixty-one".