1601040655 has 8 divisors (see below), whose sum is σ = 1922581584. Its totient is φ = 1279944000.

The previous prime is 1601040647. The next prime is 1601040713. The reversal of 1601040655 is 5560401061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1601040655 - 2³ = 1601040647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103086 + ... + 117595.

It is an arithmetic number, because the mean of its divisors is an integer number (240322698).

Almost surely, 2^1601040655 is an apocalyptic number.

1601040655 is a deficient number, since it is larger than the sum of its proper divisors (321540929).

1601040655 is a wasteful number, since it uses less digits than its factorization.

1601040655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222137.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1601040655 is about 40013.0060730258. The cubic root of 1601040655 is about 1169.8606148025.

It can be divided in two parts, 16010 and 40655, that added together give a palindrome (56665).

The spelling of 1601040655 in words is "one billion, six hundred one million, forty thousand, six hundred fifty-five".