81024146163 has 6 divisors (see below), whose sum is σ = 117034877804. Its totient is φ = 54016097436.

The previous prime is 81024146153. The next prime is 81024146173. The reversal of 81024146163 is 36164142018.

81024146163 is a `hidden beast` number, since 8 + 1 + 0 + 24 + 14 + 616 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (81024146153) and next prime (81024146173).

It is a de Polignac number, because none of the positive numbers 2^k-81024146163 is a prime.

It is a super-2 number, since 2×81024146163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81024146143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4501341445 + ... + 4501341462.

Almost surely, 2^81024146163 is an apocalyptic number.

81024146163 is a deficient number, since it is larger than the sum of its proper divisors (36010731641).

81024146163 is a wasteful number, since it uses less digits than its factorization.

81024146163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002682913 (or 9002682910 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 81024146163 in words is "eighty-one billion, twenty-four million, one hundred forty-six thousand, one hundred sixty-three".