163045940428799 has 4 divisors (see below), whose sum is σ = 163046149412640. Its totient is φ = 163045731444960.

The previous prime is 163045940428747. The next prime is 163045940428817. The reversal of 163045940428799 is 997824049540361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163045940428799 is a prime.

It is a super-2 number, since 2×163045940428799² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163045940448799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103317242 + ... + 104883479.

It is an arithmetic number, because the mean of its divisors is an integer number (40761537353160).

It is a 1-persistent number, because it is pandigital, but 2⋅163045940428799 = 326091880857598 is not.

Almost surely, 2^{163045940428799} is an apocalyptic number.

163045940428799 is a deficient number, since it is larger than the sum of its proper divisors (208983841).

163045940428799 is an equidigital number, since it uses as much as digits as its factorization.

163045940428799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208983840.

The product of its (nonzero) digits is 470292480, while the sum is 71.

The spelling of 163045940428799 in words is "one hundred sixty-three trillion, forty-five billion, nine hundred forty million, four hundred twenty-eight thousand, seven hundred ninety-nine".