646323466149 has 24 divisors (see below), whose sum is σ = 943272412992. Its totient is φ = 426408779520.

The previous prime is 646323466133. The next prime is 646323466171. The reversal of 646323466149 is 941664323646.

646323466149 is a `hidden beast` number, since 6 + 4 + 6 + 32 + 3 + 466 + 149 = 666.

It is not a de Polignac number, because 646323466149 - 2⁴ = 646323466133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 646323466095 and 646323466104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646323466949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21907162 + ... + 21936644.

It is an arithmetic number, because the mean of its divisors is an integer number (39303017208).

Almost surely, 2^646323466149 is an apocalyptic number.

It is an amenable number.

646323466149 is a deficient number, since it is larger than the sum of its proper divisors (296948946843).

646323466149 is a wasteful number, since it uses less digits than its factorization.

646323466149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54697 (or 54694 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 646323466149 in words is "six hundred forty-six billion, three hundred twenty-three million, four hundred sixty-six thousand, one hundred forty-nine".