6622685550 has 288 divisors, whose sum is σ = 20746672128. Its totient is φ = 1558465920.

The previous prime is 6622685539. The next prime is 6622685567. The reversal of 6622685550 is 555862266.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6622685496 and 6622685505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3631939 + ... + 3633761.

It is an arithmetic number, because the mean of its divisors is an integer number (72037056).

Almost surely, 2^6622685550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622685550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10373336064).

6622685550 is an abundant number, since it is smaller than the sum of its proper divisors (14123986578).

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

6622685550 is a wasteful number, since it uses less digits than its factorization.

6622685550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 6622685550 is about 81379.8841852211. The cubic root of 6622685550 is about 1877.9241413081.

The spelling of 6622685550 in words is "six billion, six hundred twenty-two million, six hundred eighty-five thousand, five hundred fifty".