10555506540 has 72 divisors (see below), whose sum is σ = 32457018048. Its totient is φ = 2776239360.

The previous prime is 10555506529. The next prime is 10555506547. The reversal of 10555506540 is 4560555501.

10555506540 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 550 + 65 + 40 = 666.

It is a super-2 number, since 2×10555506540² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 10555506495 and 10555506504.

It is not an unprimeable number, because it can be changed into a prime (10555506547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388516 + ... + 414795.

Almost surely, 2^10555506540 is an apocalyptic number.

10555506540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10555506540 is an abundant number, since it is smaller than the sum of its proper divisors (21901511508).

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

10555506540 is a wasteful number, since it uses less digits than its factorization.

10555506540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803399 (or 803394 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 10555506540 in words is "ten billion, five hundred fifty-five million, five hundred six thousand, five hundred forty".