29159660643 has 8 divisors (see below), whose sum is σ = 38880458256. Its totient is φ = 19439318400.

The previous prime is 29159660627. The next prime is 29159660653. The reversal of 29159660643 is 34606695192.

It is a Cunningham number, because it is equal to 170762²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29159660643 - 2⁴ = 29159660627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29159660653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85383 + ... + 256143.

It is an arithmetic number, because the mean of its divisors is an integer number (4860057282).

Almost surely, 2^29159660643 is an apocalyptic number.

29159660643 is a deficient number, since it is larger than the sum of its proper divisors (9720797613).

29159660643 is a wasteful number, since it uses less digits than its factorization.

29159660643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227685.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 29159660643 in words is "twenty-nine billion, one hundred fifty-nine million, six hundred sixty thousand, six hundred forty-three".