1641336856 has 32 divisors (see below), whose sum is σ = 3223346400. Its totient is φ = 782045440.

The previous prime is 1641336847. The next prime is 1641336883. The reversal of 1641336856 is 6586331461.

It is a super-3 number, since 3×1641336856³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32916 + ... + 66076.

It is an arithmetic number, because the mean of its divisors is an integer number (100729575).

Almost surely, 2^1641336856 is an apocalyptic number.

It is an amenable number.

1641336856 is a deficient number, since it is larger than the sum of its proper divisors (1582009544).

1641336856 is a wasteful number, since it uses less digits than its factorization.

1641336856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33459 (or 33455 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 1641336856 is about 40513.4157533033. The cubic root of 1641336856 is about 1179.5940516844.

The spelling of 1641336856 in words is "one billion, six hundred forty-one million, three hundred thirty-six thousand, eight hundred fifty-six".