6625697439744 has 672 divisors, whose sum is σ = 21159139921920. Its totient is φ = 2066922012672.

The previous prime is 6625697439659. The next prime is 6625697439763. The reversal of 6625697439744 is 4479347965266.

6625697439744 is a `hidden beast` number, since 6 + 62 + 5 + 6 + 97 + 439 + 7 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2151897597 + ... + 2151900675.

It is an arithmetic number, because the mean of its divisors is an integer number (31486815360).

Almost surely, 2^{6625697439744} is an apocalyptic number.

6625697439744 is a gapful number since it is divisible by the number (64) 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 6625697439744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10579569960960).

6625697439744 is an abundant number, since it is smaller than the sum of its proper divisors (14533442482176).

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

6625697439744 is an equidigital number, since it uses as much as digits as its factorization.

6625697439744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3154 counting only the distinct ones).

The product of its digits is 1646023680, while the sum is 72.

The spelling of 6625697439744 in words is "six trillion, six hundred twenty-five billion, six hundred ninety-seven million, four hundred thirty-nine thousand, seven hundred forty-four".