1661354302 has 8 divisors (see below), whose sum is σ = 2493225000. Its totient is φ = 830279304.

The previous prime is 1661354297. The next prime is 1661354341. The reversal of 1661354302 is 2034531661.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193677 + ... + 202072.

It is an arithmetic number, because the mean of its divisors is an integer number (311653125).

Almost surely, 2^1661354302 is an apocalyptic number.

1661354302 is a deficient number, since it is larger than the sum of its proper divisors (831870698).

1661354302 is a wasteful number, since it uses less digits than its factorization.

1661354302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397850.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1661354302 is about 40759.7142041011. The cubic root of 1661354302 is about 1184.3700597692.

Adding to 1661354302 its reverse (2034531661), we get a palindrome (3695885963).

The spelling of 1661354302 in words is "one billion, six hundred sixty-one million, three hundred fifty-four thousand, three hundred two".