1601377688 has 16 divisors (see below), whose sum is σ = 3007538880. Its totient is φ = 799367328.

The previous prime is 1601377619. The next prime is 1601377697. The reversal of 1601377688 is 8867731061.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 160031 + ... + 169742.

It is an arithmetic number, because the mean of its divisors is an integer number (187971180).

Almost surely, 2^1601377688 is an apocalyptic number.

It is an amenable number.

1601377688 is a deficient number, since it is larger than the sum of its proper divisors (1406161192).

1601377688 is a wasteful number, since it uses less digits than its factorization.

1601377688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330386 (or 330382 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1601377688 is about 40017.2173945166. The cubic root of 1601377688 is about 1169.9426976587.

The spelling of 1601377688 in words is "one billion, six hundred one million, three hundred seventy-seven thousand, six hundred eighty-eight".