1005006165645 has 8 divisors (see below), whose sum is σ = 1608009865056. Its totient is φ = 536003288336.

The previous prime is 1005006165643. The next prime is 1005006165703. The reversal of 1005006165645 is 5465616005001.

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 1005006165645 - 2¹ = 1005006165643 is a prime.

It is a super-3 number, since 3×1005006165645³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005006165643) 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, 33500205507 + ... + 33500205536.

It is an arithmetic number, because the mean of its divisors is an integer number (201001233132).

Almost surely, 2^{1005006165645} is an apocalyptic number.

1005006165645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005006165645 is a deficient number, since it is larger than the sum of its proper divisors (603003699411).

1005006165645 is an equidigital number, since it uses as much as digits as its factorization.

1005006165645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67000411051.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 1005006165645 in words is "one trillion, five billion, six million, one hundred sixty-five thousand, six hundred forty-five".