646102101136 has 20 divisors (see below), whose sum is σ = 1317708233200. Its totient is φ = 306048363552.

The previous prime is 646102101131. The next prime is 646102101149. The reversal of 646102101136 is 631101201646.

It is a junction number, because it is equal to n+sod(n) for n = 646102101098 and 646102101107.

It is not an unprimeable number, because it can be changed into a prime (646102101131) 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, 1062667626 + ... + 1062668233.

It is an arithmetic number, because the mean of its divisors is an integer number (65885411660).

Almost surely, 2^646102101136 is an apocalyptic number.

It is an amenable number.

646102101136 is an abundant number, since it is smaller than the sum of its proper divisors (671606132064).

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

646102101136 is a wasteful number, since it uses less digits than its factorization.

646102101136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125335886 (or 2125335880 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 646102101136 in words is "six hundred forty-six billion, one hundred two million, one hundred one thousand, one hundred thirty-six".