646232061052 has 12 divisors (see below), whose sum is σ = 1130913508536. Its totient is φ = 323113915760.

The previous prime is 646232061029. The next prime is 646232061103. The reversal of 646232061052 is 250160232646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304902 + ... + 1177042.

It is an arithmetic number, because the mean of its divisors is an integer number (94242792378).

Almost surely, 2^646232061052 is an apocalyptic number.

It is an amenable number.

646232061052 is a deficient number, since it is larger than the sum of its proper divisors (484681447484).

646232061052 is a wasteful number, since it uses less digits than its factorization.

646232061052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057388 (or 1057386 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 646232061052 its reverse (250160232646), we get a palindrome (896392293698).

The spelling of 646232061052 in words is "six hundred forty-six billion, two hundred thirty-two million, sixty-one thousand, fifty-two".