163425663655055 has 32 divisors (see below), whose sum is σ = 202142403610560. Its totient is φ = 126745184885760.

The previous prime is 163425663655039. The next prime is 163425663655061. The reversal of 163425663655055 is 550556366524361.

It is not a de Polignac number, because 163425663655055 - 2⁴ = 163425663655039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 772859252 + ... + 773070678.

It is an arithmetic number, because the mean of its divisors is an integer number (6316950112830).

Almost surely, 2^{163425663655055} is an apocalyptic number.

163425663655055 is a deficient number, since it is larger than the sum of its proper divisors (38716739955505).

163425663655055 is a wasteful number, since it uses less digits than its factorization.

163425663655055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226619.

The product of its (nonzero) digits is 291600000, while the sum is 62.

The spelling of 163425663655055 in words is "one hundred sixty-three trillion, four hundred twenty-five billion, six hundred sixty-three million, six hundred fifty-five thousand, fifty-five".