1601654020 has 24 divisors (see below), whose sum is σ = 3540499200. Its totient is φ = 606942432.

The previous prime is 1601653987. The next prime is 1601654051. The reversal of 1601654020 is 204561061.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107060 + ... + 2107819.

It is an arithmetic number, because the mean of its divisors is an integer number (147520800).

Almost surely, 2^1601654020 is an apocalyptic number.

1601654020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601654020 is an abundant number, since it is smaller than the sum of its proper divisors (1938845180).

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

1601654020 is a wasteful number, since it uses less digits than its factorization.

1601654020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214907 (or 4214905 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1601654020 is about 40020.6699094355. The cubic root of 1601654020 is about 1170.0099884700.

The spelling of 1601654020 in words is "one billion, six hundred one million, six hundred fifty-four thousand, twenty".