1662111802 has 32 divisors (see below), whose sum is σ = 2718147600. Its totient is φ = 757693440.

The previous prime is 1662111799. The next prime is 1662111823. The reversal of 1662111802 is 2081112661.

It can be written as a sum of positive squares in 8 ways, for example, as 421029361 + 1241082441 = 20519^2 + 35229^2 .

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 15 ways as a sum of consecutive naturals, for example, 1024552 + ... + 1026172.

Almost surely, 2^1662111802 is an apocalyptic number.

1662111802 is a deficient number, since it is larger than the sum of its proper divisors (1056035798).

1662111802 is a wasteful number, since it uses less digits than its factorization.

1662111802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1662111802 is about 40769.0054085208. The cubic root of 1662111802 is about 1184.5500382360.

The spelling of 1662111802 in words is "one billion, six hundred sixty-two million, one hundred eleven thousand, eight hundred two".