1601000650 has 12 divisors (see below), whose sum is σ = 2977861302. Its totient is φ = 640400240.

The previous prime is 1601000579. The next prime is 1601000657. The reversal of 1601000650 is 560001061.

It can be written as a sum of positive squares in 3 ways, for example, as 606292129 + 994708521 = 24623^2 + 31539^2 .

It is not an unprimeable number, because it can be changed into a prime (1601000657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16009957 + ... + 16010056.

Almost surely, 2^1601000650 is an apocalyptic number.

1601000650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1601000650 is a deficient number, since it is larger than the sum of its proper divisors (1376860652).

1601000650 is a wasteful number, since it uses less digits than its factorization.

1601000650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32020025 (or 32020020 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1601000650 is about 40012.5061699464. The cubic root of 1601000650 is about 1169.8508710017.

The spelling of 1601000650 in words is "one billion, six hundred one million, six hundred fifty", and thus it is an aban number.