10551543240 has 256 divisors, whose sum is σ = 37507276800. Its totient is φ = 2324653056.

The previous prime is 10551543229. The next prime is 10551543269. The reversal of 10551543240 is 4234515501.

It is a super-2 number, since 2×10551543240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10551543198 and 10551543207.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2643166 + ... + 2647154.

It is an arithmetic number, because the mean of its divisors is an integer number (146512800).

Almost surely, 2^10551543240 is an apocalyptic number.

10551543240 is a gapful number since it is divisible by the number (10) 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 10551543240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18753638400).

10551543240 is an abundant number, since it is smaller than the sum of its proper divisors (26955733560).

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

10551543240 is a wasteful number, since it uses less digits than its factorization.

10551543240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 10551543240 in words is "ten billion, five hundred fifty-one million, five hundred forty-three thousand, two hundred forty".