163220153436 has 24 divisors (see below), whose sum is σ = 423163361040. Its totient is φ = 54406717776.

The previous prime is 163220153413. The next prime is 163220153479. The reversal of 163220153436 is 634351022361.

163220153436 is a `hidden beast` number, since 1 + 632 + 2 + 0 + 15 + 3 + 4 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 163220153436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755648751 + ... + 755648966.

It is an arithmetic number, because the mean of its divisors is an integer number (17631806710).

Almost surely, 2^163220153436 is an apocalyptic number.

It is an amenable number.

163220153436 is an abundant number, since it is smaller than the sum of its proper divisors (259943207604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163220153436 is a wasteful number, since it uses less digits than its factorization.

163220153436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511297730 (or 1511297722 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 163220153436 its reverse (634351022361), we get a palindrome (797571175797).

The spelling of 163220153436 in words is "one hundred sixty-three billion, two hundred twenty million, one hundred fifty-three thousand, four hundred thirty-six".