1668503350 has 24 divisors (see below), whose sum is σ = 3140814600. Its totient is φ = 659358720.

The previous prime is 1668503311. The next prime is 1668503357. The reversal of 1668503350 is 533058661.

It is a super-2 number, since 2×1668503350² = 5567806857922445000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668503357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196875 + ... + 205174.

It is an arithmetic number, because the mean of its divisors is an integer number (130867275).

Almost surely, 2^1668503350 is an apocalyptic number.

1668503350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668503350 is a deficient number, since it is larger than the sum of its proper divisors (1472311250).

1668503350 is a wasteful number, since it uses less digits than its factorization.

1668503350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402144 (or 402139 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1668503350 is about 40847.3175373855. The cubic root of 1668503350 is about 1186.0664673867.

The spelling of 1668503350 in words is "one billion, six hundred sixty-eight million, five hundred three thousand, three hundred fifty".