163802651428 has 24 divisors (see below), whose sum is σ = 326864116152. Its totient is φ = 71154092544.

The previous prime is 163802651417. The next prime is 163802651437. The reversal of 163802651428 is 824156208361.

It can be written as a sum of positive squares in 4 ways, for example, as 13637101284 + 150165550144 = 116778^2 + 387512^2 .

It is a super-2 number, since 2×163802651428² (a number of 23 digits) contains 22 as substring.

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, 92647675 + ... + 92649442.

It is an arithmetic number, because the mean of its divisors is an integer number (13619338173).

Almost surely, 2^163802651428 is an apocalyptic number.

It is an amenable number.

163802651428 is a deficient number, since it is larger than the sum of its proper divisors (163061464724).

163802651428 is a wasteful number, since it uses less digits than its factorization.

163802651428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185297151 (or 185297149 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

Adding to 163802651428 its reverse (824156208361), we get a palindrome (987958859789).

The spelling of 163802651428 in words is "one hundred sixty-three billion, eight hundred two million, six hundred fifty-one thousand, four hundred twenty-eight".