1665796122 has 24 divisors (see below), whose sum is σ = 3620993376. Its totient is φ = 553454856.

The previous prime is 1665796117. The next prime is 1665796127. The reversal of 1665796122 is 2216975661.

1665796122 is a `hidden beast` number, since 1 + 66 + 579 + 6 + 12 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1665796117) and next prime (1665796127).

It is not an unprimeable number, because it can be changed into a prime (1665796127) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 145198 + ... + 156249.

It is an arithmetic number, because the mean of its divisors is an integer number (150874724).

Almost surely, 2^1665796122 is an apocalyptic number.

1665796122 is an abundant number, since it is smaller than the sum of its proper divisors (1955197254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1665796122 is a wasteful number, since it uses less digits than its factorization.

1665796122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301762 (or 301759 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1665796122 is about 40814.1657026087. The cubic root of 1665796122 is about 1185.4246365787.

The spelling of 1665796122 in words is "one billion, six hundred sixty-five million, seven hundred ninety-six thousand, one hundred twenty-two".