1660426700 has 18 divisors (see below), whose sum is σ = 3603126156. Its totient is φ = 664170640.

The previous prime is 1660426693. The next prime is 1660426709. The reversal of 1660426700 is 76240661.

It is not an unprimeable number, because it can be changed into a prime (1660426709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8302034 + ... + 8302233.

Almost surely, 2^1660426700 is an apocalyptic number.

1660426700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660426700 is an abundant number, since it is smaller than the sum of its proper divisors (1942699456).

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

1660426700 is a wasteful number, since it uses less digits than its factorization.

1660426700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16604281 (or 16604274 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1660426700 is about 40748.3337082635. Note that the first 3 decimals coincide. The cubic root of 1660426700 is about 1184.1495913302.

The spelling of 1660426700 in words is "one billion, six hundred sixty million, four hundred twenty-six thousand, seven hundred".