1641033646 has 16 divisors (see below), whose sum is σ = 2815672320. Its totient is φ = 702682200.

The previous prime is 1641033631. The next prime is 1641033661. The reversal of 1641033646 is 6463301461.

It is an interprime number because it is at equal distance from previous prime (1641033631) and next prime (1641033661).

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, 34806 + ... + 67033.

It is an arithmetic number, because the mean of its divisors is an integer number (175979520).

Almost surely, 2^1641033646 is an apocalyptic number.

1641033646 is a deficient number, since it is larger than the sum of its proper divisors (1174638674).

1641033646 is a wasteful number, since it uses less digits than its factorization.

1641033646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102999.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1641033646 is about 40509.6734867118. The cubic root of 1641033646 is about 1179.5214103417.

The spelling of 1641033646 in words is "one billion, six hundred forty-one million, thirty-three thousand, six hundred forty-six".