1610401344427 has 4 divisors (see below), whose sum is σ = 1626036309040. Its totient is φ = 1594766379816.

The previous prime is 1610401344407. The next prime is 1610401344473. The reversal of 1610401344427 is 7244431040161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1610401344427 - 2²³ = 1610392955819 is a prime.

It is a super-3 number, since 3×1610401344427³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1610401344407) 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, 7817482152 + ... + 7817482357.

It is an arithmetic number, because the mean of its divisors is an integer number (406509077260).

Almost surely, 2^{1610401344427} is an apocalyptic number.

1610401344427 is a deficient number, since it is larger than the sum of its proper divisors (15634964613).

1610401344427 is a wasteful number, since it uses less digits than its factorization.

1610401344427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15634964612.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 1610401344427 its reverse (7244431040161), we get a palindrome (8854832384588).

The spelling of 1610401344427 in words is "one trillion, six hundred ten billion, four hundred one million, three hundred forty-four thousand, four hundred twenty-seven".