6662420619750 has 384 divisors, whose sum is σ = 21622669286400. Its totient is φ = 1513707652800.

The previous prime is 6662420619689. The next prime is 6662420619793. The reversal of 6662420619750 is 579160242666.

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 191 ways as a sum of consecutive naturals, for example, 55174941 + ... + 55295559.

It is an arithmetic number, because the mean of its divisors is an integer number (56309034600).

Almost surely, 2^{6662420619750} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6662420619750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10811334643200).

6662420619750 is an abundant number, since it is smaller than the sum of its proper divisors (14960248666650).

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

6662420619750 is a wasteful number, since it uses less digits than its factorization.

6662420619750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120826 (or 120803 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 6662420619750 in words is "six trillion, six hundred sixty-two billion, four hundred twenty million, six hundred nineteen thousand, seven hundred fifty".