646215410241466 has 48 divisors (see below), whose sum is σ = 1083778326639360. Its totient is φ = 288552946855680.

The previous prime is 646215410241461. The next prime is 646215410241493. The reversal of 646215410241466 is 664142014512646.

It is not an unprimeable number, because it can be changed into a prime (646215410241461) 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, 29706690 + ... + 46636018.

It is an arithmetic number, because the mean of its divisors is an integer number (22578715138320).

Almost surely, 2^{646215410241466} is an apocalyptic number.

646215410241466 is a deficient number, since it is larger than the sum of its proper divisors (437562916397894).

646215410241466 is a wasteful number, since it uses less digits than its factorization.

646215410241466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16933031 (or 16933018 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 646215410241466 in words is "six hundred forty-six trillion, two hundred fifteen billion, four hundred ten million, two hundred forty-one thousand, four hundred sixty-six".