10551864280 has 16 divisors (see below), whose sum is σ = 23741694720. Its totient is φ = 4220745696.

The previous prime is 10551864247. The next prime is 10551864343. The reversal of 10551864280 is 8246815501.

It is a happy number.

It is a super-2 number, since 2×10551864280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 263796607 = 10551864280 / (1 + 0 + 5 + 5 + 1 + 8 + 6 + 4 + 2 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131898264 + ... + 131898343.

It is an arithmetic number, because the mean of its divisors is an integer number (1483855920).

Almost surely, 2^10551864280 is an apocalyptic number.

10551864280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10551864280 is an abundant number, since it is smaller than the sum of its proper divisors (13189830440).

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

10551864280 is a wasteful number, since it uses less digits than its factorization.

10551864280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263796618 (or 263796614 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 10551864280 in words is "ten billion, five hundred fifty-one million, eight hundred sixty-four thousand, two hundred eighty".