64205004425340 has 48 divisors (see below), whose sum is σ = 179933245541280. Its totient is φ = 17106169451520.

The previous prime is 64205004425293. The next prime is 64205004425453. The reversal of 64205004425340 is 4352440050246.

It is a happy 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, 473839881 + ... + 473975360.

It is an arithmetic number, because the mean of its divisors is an integer number (3748609282110).

Almost surely, 2^{64205004425340} is an apocalyptic number.

64205004425340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64205004425340 is an abundant number, since it is smaller than the sum of its proper divisors (115728241115940).

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

64205004425340 is a wasteful number, since it uses less digits than its factorization.

64205004425340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947816382 (or 947816380 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 64205004425340 its reverse (4352440050246), we get a palindrome (68557444475586).

The spelling of 64205004425340 in words is "sixty-four trillion, two hundred five billion, four million, four hundred twenty-five thousand, three hundred forty".