1601587616 has 12 divisors (see below), whose sum is σ = 3153125682. Its totient is φ = 800793792.

The previous prime is 1601587597. The next prime is 1601587649. The reversal of 1601587616 is 6167851061.

It can be written as a sum of positive squares in only one way, i.e., 1489651216 + 111936400 = 38596^2 + 10580^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25024775 + ... + 25024838.

Almost surely, 2^1601587616 is an apocalyptic number.

1601587616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1601587616 is a deficient number, since it is larger than the sum of its proper divisors (1551538066).

1601587616 is an equidigital number, since it uses as much as digits as its factorization.

1601587616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50049623 (or 50049615 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1601587616 is about 40019.8402795413. The cubic root of 1601587616 is about 1169.9938188487.

The spelling of 1601587616 in words is "one billion, six hundred one million, five hundred eighty-seven thousand, six hundred sixteen".