163497520756 has 6 divisors (see below), whose sum is σ = 286120661330. Its totient is φ = 81748760376.

The previous prime is 163497520733. The next prime is 163497520789. The reversal of 163497520756 is 657025794361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 99344736100 + 64152784656 = 315190^2 + 253284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163497520697 and 163497520706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20437190091 + ... + 20437190098.

Almost surely, 2^163497520756 is an apocalyptic number.

It is an amenable number.

163497520756 is a deficient number, since it is larger than the sum of its proper divisors (122623140574).

163497520756 is a wasteful number, since it uses less digits than its factorization.

163497520756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40874380193 (or 40874380191 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 163497520756 in words is "one hundred sixty-three billion, four hundred ninety-seven million, five hundred twenty thousand, seven hundred fifty-six".