161333001063 has 12 divisors (see below), whose sum is σ = 250962446280. Its totient is φ = 99281846736.

The previous prime is 161333001059. The next prime is 161333001079. The reversal of 161333001063 is 360100333161.

161333001063 is a `hidden beast` number, since 1 + 613 + 3 + 30 + 0 + 10 + 6 + 3 = 666.

It is not a de Polignac number, because 161333001063 - 2² = 161333001059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161333201063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 689457153 + ... + 689457386.

It is an arithmetic number, because the mean of its divisors is an integer number (20913537190).

Almost surely, 2^161333001063 is an apocalyptic number.

161333001063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161333001063 is a deficient number, since it is larger than the sum of its proper divisors (89629445217).

161333001063 is a wasteful number, since it uses less digits than its factorization.

161333001063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378914558 (or 1378914555 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

It can be divided in two parts, 16133 and 3001063, that added together give a triangular number (3017196 = T₂₄₅₆).

The spelling of 161333001063 in words is "one hundred sixty-one billion, three hundred thirty-three million, one thousand, sixty-three".