10555305440 has 48 divisors (see below), whose sum is σ = 26403792912. Its totient is φ = 3973761024.

The previous prime is 10555305437. The next prime is 10555305443. The reversal of 10555305440 is 4450355501.

It is an interprime number because it is at equal distance from previous prime (10555305437) and next prime (10555305443).

It is a super-2 number, since 2×10555305440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 10555305397 and 10555305406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10555305443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937594 + ... + 1943033.

It is an arithmetic number, because the mean of its divisors is an integer number (550079019).

Almost surely, 2^10555305440 is an apocalyptic number.

10555305440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10555305440 is an abundant number, since it is smaller than the sum of its proper divisors (15848487472).

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

10555305440 is a wasteful number, since it uses less digits than its factorization.

10555305440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880659 (or 3880651 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 10555305440 in words is "ten billion, five hundred fifty-five million, three hundred five thousand, four hundred forty".