1601111395 has 16 divisors (see below), whose sum is σ = 2100016800. Its totient is φ = 1164708864.

The previous prime is 1601111387. The next prime is 1601111411. The reversal of 1601111395 is 5931111061.

It is a cyclic number.

It is not a de Polignac number, because 1601111395 - 2³ = 1601111387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179470 + ... + 188179.

It is an arithmetic number, because the mean of its divisors is an integer number (131251050).

Almost surely, 2^1601111395 is an apocalyptic number.

1601111395 is a deficient number, since it is larger than the sum of its proper divisors (498905405).

1601111395 is a wasteful number, since it uses less digits than its factorization.

1601111395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367734.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 1601111395 is about 40013.8900258398. The cubic root of 1601111395 is about 1169.8778441633.

The spelling of 1601111395 in words is "one billion, six hundred one million, one hundred eleven thousand, three hundred ninety-five".