1605606000 has 80 divisors (see below), whose sum is σ = 5176493088. Its totient is φ = 428160000.

The previous prime is 1605605993. The next prime is 1605606031. The reversal of 1605606000 is 6065061.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 127801 + ... + 139800.

Almost surely, 2^1605606000 is an apocalyptic number.

1605606000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605606000 is an abundant number, since it is smaller than the sum of its proper divisors (3570887088).

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

1605606000 is a wasteful number, since it uses less digits than its factorization.

1605606000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267627 (or 267611 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1605606000 is about 40070.0137259772. The cubic root of 1605606000 is about 1170.9715066250.

The spelling of 1605606000 in words is "one billion, six hundred five million, six hundred six thousand".