646113443501460 has 96 divisors (see below), whose sum is σ = 1973589945264000. Its totient is φ = 156633001482240.

The previous prime is 646113443501441. The next prime is 646113443501467. The reversal of 646113443501460 is 64105344311646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646113443501467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200472816 + ... + 203670264.

It is an arithmetic number, because the mean of its divisors is an integer number (20558228596500).

Almost surely, 2^{646113443501460} is an apocalyptic number.

646113443501460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

646113443501460 is an abundant number, since it is smaller than the sum of its proper divisors (1327476501762540).

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

646113443501460 is a wasteful number, since it uses less digits than its factorization.

646113443501460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503641 (or 3503639 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 646113443501460 in words is "six hundred forty-six trillion, one hundred thirteen billion, four hundred forty-three million, five hundred one thousand, four hundred sixty".