163796554 has 4 divisors (see below), whose sum is σ = 245694834. Its totient is φ = 81898276.

The previous prime is 163796543. The next prime is 163796623. The reversal of 163796554 is 455697361.

163796554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455697361 = 7 ⋅65099623.

It can be written as a sum of positive squares in only one way, i.e., 123765625 + 40030929 = 11125^2 + 6327^2 .

It is a super-2 number, since 2×163796554² = 53658622204549832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40949137 + ... + 40949140.

Almost surely, 2^163796554 is an apocalyptic number.

163796554 is a deficient number, since it is larger than the sum of its proper divisors (81898280).

163796554 is an equidigital number, since it uses as much as digits as its factorization.

163796554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81898279.

The product of its digits is 680400, while the sum is 46.

The square root of 163796554 is about 12798.3027781030. The cubic root of 163796554 is about 547.1439317239.

The spelling of 163796554 in words is "one hundred sixty-three million, seven hundred ninety-six thousand, five hundred fifty-four".