1610336641 has 3 divisors (see below), whose sum is σ = 1610376771. Its totient is φ = 1610296512.

The previous prime is 1610336617. The next prime is 1610336647. The reversal of 1610336641 is 1466330161.

The square root of 1610336641 is 40129.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 13535041 + 1596801600 = 3679^2 + 39960^2 .

It is not a de Polignac number, because 1610336641 - 2⁹ = 1610336129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1610336647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20065 + ... + 60193.

It is an arithmetic number, because the mean of its divisors is an integer number (536792257).

Almost surely, 2^1610336641 is an apocalyptic number.

1610336641 is the 40129-th square number.

1610336641 is the 20065-th centered octagonal number.

It is an amenable number.

1610336641 is a deficient number, since it is larger than the sum of its proper divisors (40130).

1610336641 is an frugal number, since it uses more digits than its factorization.

1610336641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80258 (or 40129 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The cubic root of 1610336641 is about 1172.1204008465.

The spelling of 1610336641 in words is "one billion, six hundred ten million, three hundred thirty-six thousand, six hundred forty-one".