640323326006 has 32 divisors (see below), whose sum is σ = 1214084988480. Its totient is φ = 246468375936.

The previous prime is 640323325997. The next prime is 640323326009. The reversal of 640323326006 is 600623323046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640323326009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47537321 + ... + 47550788.

It is an arithmetic number, because the mean of its divisors is an integer number (37940155890).

Almost surely, 2^640323326006 is an apocalyptic number.

640323326006 is a deficient number, since it is larger than the sum of its proper divisors (573761662474).

640323326006 is a wasteful number, since it uses less digits than its factorization.

640323326006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95088168.

The product of its (nonzero) digits is 93312, while the sum is 35.

The spelling of 640323326006 in words is "six hundred forty billion, three hundred twenty-three million, three hundred twenty-six thousand, six".