10551543408 has 400 divisors, whose sum is σ = 38164414464. Its totient is φ = 2744616960.

The previous prime is 10551543403. The next prime is 10551543449. The reversal of 10551543408 is 80434515501.

10551543408 is a `hidden beast` number, since 10 + 551 + 54 + 3 + 40 + 8 = 666.

It is a super-2 number, since 2×10551543408² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10551543403) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4779841 + ... + 4782047.

Almost surely, 2^10551543408 is an apocalyptic number.

10551543408 is a gapful number since it is divisible by the number (18) 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 10551543408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19082207232).

10551543408 is an abundant number, since it is smaller than the sum of its proper divisors (27612871056).

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

10551543408 is a wasteful number, since it uses less digits than its factorization.

10551543408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 10551543408 in words is "ten billion, five hundred fifty-one million, five hundred forty-three thousand, four hundred eight".