646301246406 has 16 divisors (see below), whose sum is σ = 1360634203200. Its totient is φ = 204095130408.

The previous prime is 646301246399. The next prime is 646301246411. The reversal of 646301246406 is 604642103646.

It is a super-2 number, since 2×646301246406² (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 7 ways as a sum of consecutive naturals, for example, 2834654476 + ... + 2834654703.

It is an arithmetic number, because the mean of its divisors is an integer number (85039637700).

Almost surely, 2^646301246406 is an apocalyptic number.

646301246406 is an abundant number, since it is smaller than the sum of its proper divisors (714332956794).

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

646301246406 is a wasteful number, since it uses less digits than its factorization.

646301246406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669309203.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 646301246406 in words is "six hundred forty-six billion, three hundred one million, two hundred forty-six thousand, four hundred six".