1606506020 has 48 divisors (see below), whose sum is σ = 3862252800. Its totient is φ = 549853824.

The previous prime is 1606506017. The next prime is 1606506023. The reversal of 1606506020 is 206056061.

It is an interprime number because it is at equal distance from previous prime (1606506017) and next prime (1606506023).

It is not an unprimeable number, because it can be changed into a prime (1606506023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74282 + ... + 93438.

It is an arithmetic number, because the mean of its divisors is an integer number (80463600).

Almost surely, 2^1606506020 is an apocalyptic number.

1606506020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606506020 is an abundant number, since it is smaller than the sum of its proper divisors (2255746780).

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

1606506020 is a wasteful number, since it uses less digits than its factorization.

1606506020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19772 (or 19770 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1606506020 is about 40081.2427452044. The cubic root of 1606506020 is about 1171.1902611880.

The spelling of 1606506020 in words is "one billion, six hundred six million, five hundred six thousand, twenty".