1641490801 has 8 divisors (see below), whose sum is σ = 1685376000. Its totient is φ = 1597788960.

The previous prime is 1641490793. The next prime is 1641490853. The reversal of 1641490801 is 1080941461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1641490801 - 2³ = 1641490793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641400801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27601 + ... + 63598.

It is an arithmetic number, because the mean of its divisors is an integer number (210672000).

Almost surely, 2^1641490801 is an apocalyptic number.

It is an amenable number.

1641490801 is a deficient number, since it is larger than the sum of its proper divisors (43885199).

1641490801 is an equidigital number, since it uses as much as digits as its factorization.

1641490801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91679.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1641490801 is about 40515.3156349546. The cubic root of 1641490801 is about 1179.6309295356.

The spelling of 1641490801 in words is "one billion, six hundred forty-one million, four hundred ninety thousand, eight hundred one".