163037602225 has 6 divisors (see below), whose sum is σ = 202166626790. Its totient is φ = 130430081760.

The previous prime is 163037602199. The next prime is 163037602253. The reversal of 163037602225 is 522206730361.

It can be written as a sum of positive squares in 3 ways, for example, as 51188157504 + 111849444721 = 226248^2 + 334439^2 .

It is a de Polignac number, because none of the positive numbers 2^k-163037602225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3260752020 + ... + 3260752069.

Almost surely, 2^163037602225 is an apocalyptic number.

It is an amenable number.

163037602225 is a deficient number, since it is larger than the sum of its proper divisors (39129024565).

163037602225 is an equidigital number, since it uses as much as digits as its factorization.

163037602225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6521504099 (or 6521504094 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 163037602225 in words is "one hundred sixty-three billion, thirty-seven million, six hundred two thousand, two hundred twenty-five".