6622149072 has 320 divisors, whose sum is σ = 22787112960. Its totient is φ = 1606348800.

The previous prime is 6622149047. The next prime is 6622149073. The reversal of 6622149072 is 2709412266.

It is a super-2 number, since 2×6622149072² = 87705716663580922368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6622149072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622149073) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3321708 + ... + 3323700.

It is an arithmetic number, because the mean of its divisors is an integer number (71209728).

Almost surely, 2^6622149072 is an apocalyptic number.

6622149072 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622149072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11393556480).

6622149072 is an abundant number, since it is smaller than the sum of its proper divisors (16164963888).

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

6622149072 is a wasteful number, since it uses less digits than its factorization.

6622149072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 6622149072 is about 81376.5879845057. The cubic root of 6622149072 is about 1877.8734321617.

The spelling of 6622149072 in words is "six billion, six hundred twenty-two million, one hundred forty-nine thousand, seventy-two".