6665019222708 has 384 divisors, whose sum is σ = 21758857236480. Its totient is φ = 1713954816000.

The previous prime is 6665019222683. The next prime is 6665019222713. The reversal of 6665019222708 is 8072229105666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 338642628 + ... + 338662308.

It is an arithmetic number, because the mean of its divisors is an integer number (56663690720).

Almost surely, 2^{6665019222708} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6665019222708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10879428618240).

6665019222708 is an abundant number, since it is smaller than the sum of its proper divisors (15093838013772).

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

6665019222708 is a wasteful number, since it uses less digits than its factorization.

6665019222708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20116 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 6665019222708 in words is "six trillion, six hundred sixty-five billion, nineteen million, two hundred twenty-two thousand, seven hundred eight".