402160513553 has 4 divisors (see below), whose sum is σ = 413029716660. Its totient is φ = 391291310448.

The previous prime is 402160513543. The next prime is 402160513591. The reversal of 402160513553 is 355315061204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164590055809 + 237570457744 = 405697^2 + 487412^2 .

It is a cyclic number.

It is not a de Polignac number, because 402160513553 - 2⁸ = 402160513297 is a prime.

It is a super-2 number, since 2×402160513553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402160513543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5434601498 + ... + 5434601571.

It is an arithmetic number, because the mean of its divisors is an integer number (103257429165).

Almost surely, 2^402160513553 is an apocalyptic number.

It is an amenable number.

402160513553 is a deficient number, since it is larger than the sum of its proper divisors (10869203107).

402160513553 is a wasteful number, since it uses less digits than its factorization.

402160513553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10869203106.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 402160513553 its reverse (355315061204), we get a palindrome (757475574757).

The spelling of 402160513553 in words is "four hundred two billion, one hundred sixty million, five hundred thirteen thousand, five hundred fifty-three".