646241455132 has 48 divisors (see below), whose sum is σ = 1439901408960. Its totient is φ = 246840233472.

The previous prime is 646241455127. The next prime is 646241455147. The reversal of 646241455132 is 231554142646.

It is a super-2 number, since 2×646241455132² (a number of 24 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 15 ways as a sum of consecutive naturals, for example, 30599593 + ... + 30620704.

It is an arithmetic number, because the mean of its divisors is an integer number (29997946020).

Almost surely, 2^646241455132 is an apocalyptic number.

It is an amenable number.

646241455132 is an abundant number, since it is smaller than the sum of its proper divisors (793659953828).

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

646241455132 is a wasteful number, since it uses less digits than its factorization.

646241455132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61220350 (or 61220348 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

Adding to 646241455132 its reverse (231554142646), we get a palindrome (877795597778).

The spelling of 646241455132 in words is "six hundred forty-six billion, two hundred forty-one million, four hundred fifty-five thousand, one hundred thirty-two".