163260616478 has 32 divisors (see below), whose sum is σ = 257074560000. Its totient is φ = 77685532704.

The previous prime is 163260616471. The next prime is 163260616481. The reversal of 163260616478 is 874616062361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163260616471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495023 + ... + 756021.

It is an arithmetic number, because the mean of its divisors is an integer number (8033580000).

Almost surely, 2^163260616478 is an apocalyptic number.

163260616478 is a deficient number, since it is larger than the sum of its proper divisors (93813943522).

163260616478 is a wasteful number, since it uses less digits than its factorization.

163260616478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261224.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 163260616478 in words is "one hundred sixty-three billion, two hundred sixty million, six hundred sixteen thousand, four hundred seventy-eight".