1641599408 has 10 divisors (see below), whose sum is σ = 3180598884. Its totient is φ = 820799696.

The previous prime is 1641599321. The next prime is 1641599417. The reversal of 1641599408 is 8049951461.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51299966 + ... + 51299997.

Almost surely, 2^1641599408 is an apocalyptic number.

It is an amenable number.

1641599408 is a deficient number, since it is larger than the sum of its proper divisors (1538999476).

1641599408 is a wasteful number, since it uses less digits than its factorization.

1641599408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102599971 (or 102599965 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1641599408 is about 40516.6559330851. The cubic root of 1641599408 is about 1179.6569451857.

The spelling of 1641599408 in words is "one billion, six hundred forty-one million, five hundred ninety-nine thousand, four hundred eight".