6551126736 has 240 divisors, whose sum is σ = 22608552960. Its totient is φ = 1611912960.

The previous prime is 6551126719. The next prime is 6551126753. The reversal of 6551126736 is 6376211556.

It is an interprime number because it is at equal distance from previous prime (6551126719) and next prime (6551126753).

It is a super-2 number, since 2×6551126736² = 85834523022268027392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 484905 + ... + 498231.

It is an arithmetic number, because the mean of its divisors is an integer number (94202304).

Almost surely, 2^6551126736 is an apocalyptic number.

6551126736 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 6551126736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11304276480).

6551126736 is an abundant number, since it is smaller than the sum of its proper divisors (16057426224).

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

6551126736 is a wasteful number, since it uses less digits than its factorization.

6551126736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13382 (or 13369 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 6551126736 is about 80939.0309801149. The cubic root of 6551126736 is about 1871.1359104724.

The spelling of 6551126736 in words is "six billion, five hundred fifty-one million, one hundred twenty-six thousand, seven hundred thirty-six".