163226752644 has 24 divisors (see below), whose sum is σ = 387106070848. Its totient is φ = 53516967840.

The previous prime is 163226752621. The next prime is 163226752697. The reversal of 163226752644 is 446257622361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163226752593 and 163226752602.

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, 111492952 + ... + 111494415.

Almost surely, 2^163226752644 is an apocalyptic number.

It is an amenable number.

163226752644 is an abundant number, since it is smaller than the sum of its proper divisors (223879318204).

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

163226752644 is a wasteful number, since it uses less digits than its factorization.

163226752644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222987435 (or 222987433 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 48.

The spelling of 163226752644 in words is "one hundred sixty-three billion, two hundred twenty-six million, seven hundred fifty-two thousand, six hundred forty-four".