64674546420205 has 16 divisors (see below), whose sum is σ = 80059081319424. Its totient is φ = 50131872521280.

The previous prime is 64674546420193. The next prime is 64674546420223. The reversal of 64674546420205 is 50202464547646.

It is a de Polignac number, because none of the positive numbers 2^k-64674546420205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582425037 + ... + 1582465906.

It is an arithmetic number, because the mean of its divisors is an integer number (5003692582464).

Almost surely, 2^{64674546420205} is an apocalyptic number.

It is an amenable number.

64674546420205 is a deficient number, since it is larger than the sum of its proper divisors (15384534899219).

64674546420205 is a wasteful number, since it uses less digits than its factorization.

64674546420205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164891076.

The product of its (nonzero) digits is 38707200, while the sum is 55.

The spelling of 64674546420205 in words is "sixty-four trillion, six hundred seventy-four billion, five hundred forty-six million, four hundred twenty thousand, two hundred five".