1606668480 has 112 divisors (see below), whose sum is σ = 5667999840. Its totient is φ = 428442624.

The previous prime is 1606668467. The next prime is 1606668493. The reversal of 1606668480 is 848666061.

It is an interprime number because it is at equal distance from previous prime (1606668467) and next prime (1606668493).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84339 + ... + 101618.

Almost surely, 2^1606668480 is an apocalyptic number.

1606668480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606668480 is an abundant number, since it is smaller than the sum of its proper divisors (4061331360).

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

1606668480 is a wasteful number, since it uses less digits than its factorization.

1606668480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185983 (or 185967 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1606668480 is about 40083.2693277382. The cubic root of 1606668480 is about 1171.2297392341.

The spelling of 1606668480 in words is "one billion, six hundred six million, six hundred sixty-eight thousand, four hundred eighty".