64020406466 has 16 divisors (see below), whose sum is σ = 98278839648. Its totient is φ = 31261020000.

The previous prime is 64020406451. The next prime is 64020406487. The reversal of 64020406466 is 66460402046.

It is a super-2 number, since 2×64020406466² (a number of 22 digits) contains 22 as substring.

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, 548921 + ... + 655251.

It is an arithmetic number, because the mean of its divisors is an integer number (6142427478).

Almost surely, 2^64020406466 is an apocalyptic number.

64020406466 is a deficient number, since it is larger than the sum of its proper divisors (34258433182).

64020406466 is a wasteful number, since it uses less digits than its factorization.

64020406466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113377.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 64020406466 in words is "sixty-four billion, twenty million, four hundred six thousand, four hundred sixty-six".