1601650164 has 24 divisors (see below), whose sum is σ = 3866052960. Its totient is φ = 515473504.

The previous prime is 1601650159. The next prime is 1601650177. The reversal of 1601650164 is 4610561061.

It is a congruent number.

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, 2300874 + ... + 2301569.

It is an arithmetic number, because the mean of its divisors is an integer number (161085540).

Almost surely, 2^1601650164 is an apocalyptic number.

It is an amenable number.

1601650164 is an abundant number, since it is smaller than the sum of its proper divisors (2264402796).

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

1601650164 is a wasteful number, since it uses less digits than its factorization.

1601650164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602479 (or 4602477 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1601650164 is about 40020.6217343009. The cubic root of 1601650164 is about 1170.0090495319.

The spelling of 1601650164 in words is "one billion, six hundred one million, six hundred fifty thousand, one hundred sixty-four".