1601251344 has 120 divisors (see below), whose sum is σ = 5587088832. Its totient is φ = 415906560.

The previous prime is 1601251343. The next prime is 1601251349. The reversal of 1601251344 is 4431521061.

It is a happy number.

1601251344 is a `hidden beast` number, since 1 + 601 + 2 + 5 + 13 + 44 = 666.

It is not an unprimeable number, because it can be changed into a prime (1601251343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61119 + ... + 83294.

Almost surely, 2^1601251344 is an apocalyptic number.

1601251344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1601251344 is an abundant number, since it is smaller than the sum of its proper divisors (3985837488).

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

1601251344 is a wasteful number, since it uses less digits than its factorization.

1601251344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144445 (or 144436 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1601251344 is about 40015.6387428715. The cubic root of 1601251344 is about 1169.9119285010.

The spelling of 1601251344 in words is "one billion, six hundred one million, two hundred fifty-one thousand, three hundred forty-four".