1666703352 has 16 divisors (see below), whose sum is σ = 4166758440. Its totient is φ = 555567776.

The previous prime is 1666703347. The next prime is 1666703371. The reversal of 1666703352 is 2533076661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666703352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34722963 + ... + 34723010.

Almost surely, 2^1666703352 is an apocalyptic number.

1666703352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1666703352 is an abundant number, since it is smaller than the sum of its proper divisors (2500055088).

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

1666703352 is a wasteful number, since it uses less digits than its factorization.

1666703352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69445982 (or 69445978 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 1666703352 is about 40825.2783456525. The cubic root of 1666703352 is about 1185.6398004873.

The spelling of 1666703352 in words is "one billion, six hundred sixty-six million, seven hundred three thousand, three hundred fifty-two".