1608668530 has 96 divisors (see below), whose sum is σ = 3590770176. Its totient is φ = 516168576.

The previous prime is 1608668521. The next prime is 1608668533. The reversal of 1608668530 is 358668061.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1608668533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 528172 + ... + 531208.

It is an arithmetic number, because the mean of its divisors is an integer number (37403856).

Almost surely, 2^1608668530 is an apocalyptic number.

1608668530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1608668530 is an abundant number, since it is smaller than the sum of its proper divisors (1982101646).

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

1608668530 is a wasteful number, since it uses less digits than its factorization.

1608668530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128 (or 3121 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 1608668530 is about 40108.2102567542. The cubic root of 1608668530 is about 1171.7155367541.

The spelling of 1608668530 in words is "one billion, six hundred eight million, six hundred sixty-eight thousand, five hundred thirty".