29629081161 has 27 divisors (see below), whose sum is σ = 43171505013. Its totient is φ = 19581622560.

The previous prime is 29629081129. The next prime is 29629081169. The reversal of 29629081161 is 16118092692.

The square root of 29629081161 is 172131.

It is a perfect power (a square), and thus also a powerful number.

29629081161 is a `hidden beast` number, since 2 + 9 + 629 + 0 + 8 + 1 + 16 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 26258582025 + 3370499136 = 162045^2 + 58056^2 .

It is not a de Polignac number, because 29629081161 - 2⁵ = 29629081129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29629081169) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 93466975 + ... + 93467291.

Almost surely, 2^29629081161 is an apocalyptic number.

29629081161 is the 172131-st square number.

29629081161 is the 86066-th centered octagonal number.

It is an amenable number.

29629081161 is a deficient number, since it is larger than the sum of its proper divisors (13542423852).

29629081161 is an frugal number, since it uses more digits than its factorization.

29629081161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 29629081161 in words is "twenty-nine billion, six hundred twenty-nine million, eighty-one thousand, one hundred sixty-one".