163604416335465 has 32 divisors (see below), whose sum is σ = 299172825916416. Its totient is φ = 74787974170560.

The previous prime is 163604416335449. The next prime is 163604416335467. The reversal of 163604416335465 is 564533614406361.

163604416335465 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163604416335465 - 2⁴ = 163604416335449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163604416335467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24233991 + ... + 30240620.

It is an arithmetic number, because the mean of its divisors is an integer number (9349150809888).

Almost surely, 2^{163604416335465} is an apocalyptic number.

163604416335465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163604416335465 is a deficient number, since it is larger than the sum of its proper divisors (135568409580951).

163604416335465 is a wasteful number, since it uses less digits than its factorization.

163604416335465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54503229.

The product of its (nonzero) digits is 55987200, while the sum is 57.

The spelling of 163604416335465 in words is "one hundred sixty-three trillion, six hundred four billion, four hundred sixteen million, three hundred thirty-five thousand, four hundred sixty-five".