1618666032 has 40 divisors (see below), whose sum is σ = 4363363584. Its totient is φ = 516096064.

The previous prime is 1618666013. The next prime is 1618666079. The reversal of 1618666032 is 2306668161.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 731988 + ... + 734195.

Almost surely, 2^1618666032 is an apocalyptic number.

1618666032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1618666032 is an abundant number, since it is smaller than the sum of its proper divisors (2744697552).

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

1618666032 is a wasteful number, since it uses less digits than its factorization.

1618666032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466217 (or 1466211 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1618666032 is about 40232.6488315149. The cubic root of 1618666032 is about 1174.1378391267.

The spelling of 1618666032 in words is "one billion, six hundred eighteen million, six hundred sixty-six thousand, thirty-two".