1661044102 has 8 divisors (see below), whose sum is σ = 2517252696. Its totient is φ = 821959872.

The previous prime is 1661044093. The next prime is 1661044127. The reversal of 1661044102 is 2014401661.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4280848 + ... + 4281235.

It is an arithmetic number, because the mean of its divisors is an integer number (314656587).

Almost surely, 2^1661044102 is an apocalyptic number.

1661044102 is a deficient number, since it is larger than the sum of its proper divisors (856208594).

1661044102 is an equidigital number, since it uses as much as digits as its factorization.

1661044102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562182.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1661044102 is about 40755.9087986024. The cubic root of 1661044102 is about 1184.2963419073.

Adding to 1661044102 its reverse (2014401661), we get a palindrome (3675445763).

The spelling of 1661044102 in words is "one billion, six hundred sixty-one million, forty-four thousand, one hundred two".