6406621340622 has 16 divisors (see below), whose sum is σ = 12845195909712. Its totient is φ = 2130214908800.

The previous prime is 6406621340621. The next prime is 6406621340633. The reversal of 6406621340622 is 2260431266046.

It is a super-2 number, since 2×6406621340622² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406621340621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1331381913 + ... + 1331386724.

It is an arithmetic number, because the mean of its divisors is an integer number (802824744357).

Almost surely, 2^{6406621340622} is an apocalyptic number.

6406621340622 is an abundant number, since it is smaller than the sum of its proper divisors (6438574569090).

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

6406621340622 is a wasteful number, since it uses less digits than its factorization.

6406621340622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662769043.

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

The spelling of 6406621340622 in words is "six trillion, four hundred six billion, six hundred twenty-one million, three hundred forty thousand, six hundred twenty-two".