1646513020006 has 8 divisors (see below), whose sum is σ = 2549439514944. Its totient is φ = 796699848360.

The previous prime is 1646513019989. The next prime is 1646513020063. The reversal of 1646513020006 is 6000203156461.

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

It is a super-2 number, since 2×1646513020006² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13278330745 + ... + 13278330868.

It is an arithmetic number, because the mean of its divisors is an integer number (318679939368).

Almost surely, 2^{1646513020006} is an apocalyptic number.

1646513020006 is a deficient number, since it is larger than the sum of its proper divisors (902926494938).

1646513020006 is a wasteful number, since it uses less digits than its factorization.

1646513020006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26556661646.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 1646513020006 its reverse (6000203156461), we get a palindrome (7646716176467).

The spelling of 1646513020006 in words is "one trillion, six hundred forty-six billion, five hundred thirteen million, twenty thousand, six".