1662542662 has 12 divisors (see below), whose sum is σ = 2741134788. Its totient is φ = 755701100.

The previous prime is 1662542633. The next prime is 1662542681. The reversal of 1662542662 is 2662452661.

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 5 ways as a sum of consecutive naturals, for example, 3434764 + ... + 3435247.

It is an arithmetic number, because the mean of its divisors is an integer number (228427899).

Almost surely, 2^1662542662 is an apocalyptic number.

1662542662 is a deficient number, since it is larger than the sum of its proper divisors (1078592126).

1662542662 is a wasteful number, since it uses less digits than its factorization.

1662542662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870035 (or 6870024 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 1662542662 is about 40774.2892274041. The cubic root of 1662542662 is about 1184.6523841662.

Subtracting 1662542662 from its reverse (2662452661), we obtain a palindrome (999909999).

The spelling of 1662542662 in words is "one billion, six hundred sixty-two million, five hundred forty-two thousand, six hundred sixty-two".