406564033077740 has 24 divisors (see below), whose sum is σ = 855935060083152. Its totient is φ = 162215976922560.

The previous prime is 406564033077707. The next prime is 406564033077793. The reversal of 406564033077740 is 47770330465604.

It is a happy 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, 25602261146 + ... + 25602277025.

It is an arithmetic number, because the mean of its divisors is an integer number (35663960836798).

Almost surely, 2^{406564033077740} is an apocalyptic number.

It is an amenable number.

406564033077740 is an abundant number, since it is smaller than the sum of its proper divisors (449371027005412).

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

406564033077740 is a wasteful number, since it uses less digits than its factorization.

406564033077740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51204538577 (or 51204538575 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 56.

The spelling of 406564033077740 in words is "four hundred six trillion, five hundred sixty-four billion, thirty-three million, seventy-seven thousand, seven hundred forty".