1642360065 has 8 divisors (see below), whose sum is σ = 2627776128. Its totient is φ = 875925360.

The previous prime is 1642360051. The next prime is 1642360087. The reversal of 1642360065 is 5600632461.

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

It is not a de Polignac number, because 1642360065 - 2¹¹ = 1642358017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54745321 + ... + 54745350.

It is an arithmetic number, because the mean of its divisors is an integer number (328472016).

Almost surely, 2^1642360065 is an apocalyptic number.

1642360065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1642360065 is a deficient number, since it is larger than the sum of its proper divisors (985416063).

1642360065 is a wasteful number, since it uses less digits than its factorization.

1642360065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109490679.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1642360065 is about 40526.0418126419. The cubic root of 1642360065 is about 1179.8391203153.

The spelling of 1642360065 in words is "one billion, six hundred forty-two million, three hundred sixty thousand, sixty-five".