1662120268 has 24 divisors (see below), whose sum is σ = 3017609280. Its totient is φ = 800110080.

The previous prime is 1662120259. The next prime is 1662120281. The reversal of 1662120268 is 8620212661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20653 + ... + 61243.

It is an arithmetic number, because the mean of its divisors is an integer number (125733720).

Almost surely, 2^1662120268 is an apocalyptic number.

It is an amenable number.

1662120268 is a deficient number, since it is larger than the sum of its proper divisors (1355489012).

1662120268 is a wasteful number, since it uses less digits than its factorization.

1662120268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40977 (or 40975 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1662120268 is about 40769.1092372644. The cubic root of 1662120268 is about 1184.5520494091.

The spelling of 1662120268 in words is "one billion, six hundred sixty-two million, one hundred twenty thousand, two hundred sixty-eight".