1601156888 has 64 divisors (see below), whose sum is σ = 3120645120. Its totient is φ = 769824000.

The previous prime is 1601156867. The next prime is 1601156897. The reversal of 1601156888 is 8886511061.

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, 5908193 + ... + 5908463.

It is an arithmetic number, because the mean of its divisors is an integer number (48760080).

Almost surely, 2^1601156888 is an apocalyptic number.

It is an amenable number.

1601156888 is a deficient number, since it is larger than the sum of its proper divisors (1519488232).

1601156888 is a wasteful number, since it uses less digits than its factorization.

1601156888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 1601156888 is about 40014.4584869020. The cubic root of 1601156888 is about 1169.8889241229. Note that the first 3 decimals are identical.

The spelling of 1601156888 in words is "one billion, six hundred one million, one hundred fifty-six thousand, eight hundred eighty-eight".