6625451316 has 288 divisors, whose sum is σ = 18914344960. Its totient is φ = 1796256000.

The previous prime is 6625451291. The next prime is 6625451321. The reversal of 6625451316 is 6131545266.

It is a super-2 number, since 2×6625451316² = 87793210281372263712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52168845 + ... + 52168971.

Almost surely, 2^6625451316 is an apocalyptic number.

6625451316 is a gapful number since it is divisible by the number (66) 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 6625451316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9457172480).

6625451316 is an abundant number, since it is smaller than the sum of its proper divisors (12288893644).

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

6625451316 is a wasteful number, since it uses less digits than its factorization.

6625451316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 254 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 6625451316 is about 81396.8753454333. The cubic root of 6625451316 is about 1878.1855244908.

The spelling of 6625451316 in words is "six billion, six hundred twenty-five million, four hundred fifty-one thousand, three hundred sixteen".