163302397508 has 6 divisors (see below), whose sum is σ = 285779195646. Its totient is φ = 81651198752.

The previous prime is 163302397501. The next prime is 163302397529. The reversal of 163302397508 is 805793203361.

It can be written as a sum of positive squares in only one way, i.e., 139411130884 + 23891266624 = 373378^2 + 154568^2 .

It is a super-2 number, since 2×163302397508² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163302397501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20412799685 + ... + 20412799692.

It is an arithmetic number, because the mean of its divisors is an integer number (47629865941).

Almost surely, 2^163302397508 is an apocalyptic number.

It is an amenable number.

163302397508 is a deficient number, since it is larger than the sum of its proper divisors (122476798138).

163302397508 is a wasteful number, since it uses less digits than its factorization.

163302397508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40825599381 (or 40825599379 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 163302397508 in words is "one hundred sixty-three billion, three hundred two million, three hundred ninety-seven thousand, five hundred eight".