163614425601551 has 16 divisors (see below), whose sum is σ = 165628326864000. Its totient is φ = 161612798227200.

The previous prime is 163614425601509. The next prime is 163614425601617. The reversal of 163614425601551 is 155106524416361.

It is a cyclic number.

It is not a de Polignac number, because 163614425601551 - 2³⁴ = 163597245732367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163614425601551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163614421601551) 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, 915804890 + ... + 915983528.

It is an arithmetic number, because the mean of its divisors is an integer number (10351770429000).

Almost surely, 2^{163614425601551} is an apocalyptic number.

163614425601551 is a deficient number, since it is larger than the sum of its proper divisors (2013901262449).

163614425601551 is a wasteful number, since it uses less digits than its factorization.

163614425601551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212930.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 163614425601551 in words is "one hundred sixty-three trillion, six hundred fourteen billion, four hundred twenty-five million, six hundred one thousand, five hundred fifty-one".