64161798 has 8 divisors (see below), whose sum is σ = 128323608. Its totient is φ = 21387264.

The previous prime is 64161793. The next prime is 64161809. The reversal of 64161798 is 89716146.

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

64161798 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64161793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5346811 + ... + 5346822.

It is an arithmetic number, because the mean of its divisors is an integer number (16040451).

Almost surely, 2^64161798 is an apocalyptic number.

64161798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64161798 is a wasteful number, since it uses less digits than its factorization.

64161798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10693638.

The product of its digits is 72576, while the sum is 42.

The square root of 64161798 is about 8010.1059918081. The cubic root of 64161798 is about 400.3367955090.

The spelling of 64161798 in words is "sixty-four million, one hundred sixty-one thousand, seven hundred ninety-eight".