1606355620 has 24 divisors (see below), whose sum is σ = 3382170624. Its totient is φ = 640861536.

The previous prime is 1606355609. The next prime is 1606355651. The reversal of 1606355620 is 265536061.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97194 + ... + 112513.

It is an arithmetic number, because the mean of its divisors is an integer number (140923776).

Almost surely, 2^1606355620 is an apocalyptic number.

1606355620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606355620 is an abundant number, since it is smaller than the sum of its proper divisors (1775815004).

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

1606355620 is a wasteful number, since it uses less digits than its factorization.

1606355620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210099 (or 210097 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1606355620 is about 40079.3665119597. The cubic root of 1606355620 is about 1171.1537113690.

The spelling of 1606355620 in words is "one billion, six hundred six million, three hundred fifty-five thousand, six hundred twenty".