1601610371 has 8 divisors (see below), whose sum is σ = 1627442880. Its totient is φ = 1575916992.

The previous prime is 1601610337. The next prime is 1601610391. The reversal of 1601610371 is 1730161061.

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

It is a cyclic number.

It is not a de Polignac number, because 1601610371 - 2¹⁸ = 1601348227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601610371.

It is not an unprimeable number, because it can be changed into a prime (1601610391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 57743.

It is an arithmetic number, because the mean of its divisors is an integer number (203430360).

Almost surely, 2^1601610371 is an apocalyptic number.

1601610371 is a deficient number, since it is larger than the sum of its proper divisors (25832509).

1601610371 is an equidigital number, since it uses as much as digits as its factorization.

1601610371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69565.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1601610371 is about 40020.1245750185. The cubic root of 1601610371 is about 1169.9993598263. Note that the first 3 decimals are identical.

The spelling of 1601610371 in words is "one billion, six hundred one million, six hundred ten thousand, three hundred seventy-one".