163251623044 has 12 divisors (see below), whose sum is σ = 285817273168. Its totient is φ = 81589545000.

The previous prime is 163251622993. The next prime is 163251623047. The reversal of 163251623044 is 440326152361.

It is a junction number, because it is equal to n+sod(n) for n = 163251622994 and 163251623012.

It is not an unprimeable number, because it can be changed into a prime (163251623047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9056502 + ... + 9074509.

Almost surely, 2^163251623044 is an apocalyptic number.

It is an amenable number.

163251623044 is a deficient number, since it is larger than the sum of its proper divisors (122565650124).

163251623044 is a wasteful number, since it uses less digits than its factorization.

163251623044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18133266 (or 18133264 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 163251623044 in words is "one hundred sixty-three billion, two hundred fifty-one million, six hundred twenty-three thousand, forty-four".