1601261360 has 20 divisors (see below), whose sum is σ = 3722932848. Its totient is φ = 640504512.

The previous prime is 1601261329. The next prime is 1601261371. The reversal of 1601261360 is 631621061.

It is a tau number, because it is divible by the number of its divisors (20).

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, 10007804 + ... + 10007963.

Almost surely, 2^1601261360 is an apocalyptic number.

1601261360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601261360 is an abundant number, since it is smaller than the sum of its proper divisors (2121671488).

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

1601261360 is a wasteful number, since it uses less digits than its factorization.

1601261360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015780 (or 20015774 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1601261360 is about 40015.7638937457. The cubic root of 1601261360 is about 1169.9143678044.

The spelling of 1601261360 in words is "one billion, six hundred one million, two hundred sixty-one thousand, three hundred sixty".