6662252201780 has 192 divisors, whose sum is σ = 17107001597952. Its totient is φ = 2127471575040.

The previous prime is 6662252201777. The next prime is 6662252201833. The reversal of 6662252201780 is 871022522666.

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 63 ways as a sum of consecutive naturals, for example, 87695972 + ... + 87771908.

It is an arithmetic number, because the mean of its divisors is an integer number (89098966656).

Almost surely, 2^{6662252201780} 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 6662252201780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8553500798976).

6662252201780 is an abundant number, since it is smaller than the sum of its proper divisors (10444749396172).

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

6662252201780 is a wasteful number, since it uses less digits than its factorization.

6662252201780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76354 (or 76352 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 6662252201780 in words is "six trillion, six hundred sixty-two billion, two hundred fifty-two million, two hundred one thousand, seven hundred eighty".