10402011553540 has 24 divisors (see below), whose sum is σ = 21867438142872. Its totient is φ = 4156382929920.

The previous prime is 10402011553519. The next prime is 10402011553543. The reversal of 10402011553540 is 4535511020401.

It can be written as a sum of positive squares in 4 ways, for example, as 83612736 + 10401927940804 = 9144^2 + 3225202^2 .

It is not an unprimeable number, because it can be changed into a prime (10402011553543) 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, 276336429 + ... + 276374068.

It is an arithmetic number, because the mean of its divisors is an integer number (911143255953).

Almost surely, 2^{10402011553540} is an apocalyptic number.

10402011553540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10402011553540 is an abundant number, since it is smaller than the sum of its proper divisors (11465426589332).

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

10402011553540 is a wasteful number, since it uses less digits than its factorization.

10402011553540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552711447 (or 552711445 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 10402011553540 its reverse (4535511020401), we get a palindrome (14937522573941).

The spelling of 10402011553540 in words is "ten trillion, four hundred two billion, eleven million, five hundred fifty-three thousand, five hundred forty".