16363535401 has 4 divisors (see below), whose sum is σ = 16364458692. Its totient is φ = 16362612112.

The previous prime is 16363535399. The next prime is 16363535423. The reversal of 16363535401 is 10453536361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10453536361 = 12659 ⋅825779.

It can be written as a sum of positive squares in 2 ways, for example, as 11654282025 + 4709253376 = 107955^2 + 68624^2 .

It is a cyclic number.

It is not a de Polignac number, because 16363535401 - 2¹ = 16363535399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16363505401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434530 + ... + 470683.

It is an arithmetic number, because the mean of its divisors is an integer number (4091114673).

Almost surely, 2^16363535401 is an apocalyptic number.

It is an amenable number.

16363535401 is a deficient number, since it is larger than the sum of its proper divisors (923291).

16363535401 is an equidigital number, since it uses as much as digits as its factorization.

16363535401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923290.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 16363535401 in words is "sixteen billion, three hundred sixty-three million, five hundred thirty-five thousand, four hundred one".