163001156541225 has 24 divisors (see below), whose sum is σ = 269495641642272. Its totient is φ = 86933822361600.

The previous prime is 163001156541217. The next prime is 163001156541257. The reversal of 163001156541225 is 522145651100361.

It is not a de Polignac number, because 163001156541225 - 2³ = 163001156541217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72564190 + ... + 74776760.

It is an arithmetic number, because the mean of its divisors is an integer number (11228985068428).

Almost surely, 2^{163001156541225} is an apocalyptic number.

163001156541225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163001156541225 is a deficient number, since it is larger than the sum of its proper divisors (106494485101047).

163001156541225 is a wasteful number, since it uses less digits than its factorization.

163001156541225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194857 (or 3194852 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 163001156541225 in words is "one hundred sixty-three trillion, one billion, one hundred fifty-six million, five hundred forty-one thousand, two hundred twenty-five".