1618703662 has 4 divisors (see below), whose sum is σ = 2428055496. Its totient is φ = 809351830.

The previous prime is 1618703633. The next prime is 1618703663. The reversal of 1618703662 is 2663078161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2663078161 = 23 ⋅115786007.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618703663) 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 as a sum of consecutive naturals, namely, 404675914 + ... + 404675917.

It is an arithmetic number, because the mean of its divisors is an integer number (607013874).

Almost surely, 2^1618703662 is an apocalyptic number.

1618703662 is a deficient number, since it is larger than the sum of its proper divisors (809351834).

1618703662 is an equidigital number, since it uses as much as digits as its factorization.

1618703662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809351833.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1618703662 is about 40233.1164838122. The cubic root of 1618703662 is about 1174.1469376609.

The spelling of 1618703662 in words is "one billion, six hundred eighteen million, seven hundred three thousand, six hundred sixty-two".