10040105540 has 24 divisors (see below), whose sum is σ = 21277659480. Its totient is φ = 3979196928.

The previous prime is 10040105539. The next prime is 10040105587. The reversal of 10040105540 is 4550104001.

It can be written as a sum of positive squares in 4 ways, for example, as 368563204 + 9671542336 = 19198^2 + 98344^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300597 + ... + 2304956.

It is an arithmetic number, because the mean of its divisors is an integer number (886569145).

Almost surely, 2^10040105540 is an apocalyptic number.

10040105540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10040105540 is an abundant number, since it is smaller than the sum of its proper divisors (11237553940).

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

10040105540 is a wasteful number, since it uses less digits than its factorization.

10040105540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605671 (or 4605669 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 10040105540 its reverse (4550104001), we get a palindrome (14590209541).

The spelling of 10040105540 in words is "ten billion, forty million, one hundred five thousand, five hundred forty".