29161399632 has 80 divisors (see below), whose sum is σ = 77432484480. Its totient is φ = 9450072576.

The previous prime is 29161399627. The next prime is 29161399679. The reversal of 29161399632 is 23699316192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2432469 + ... + 2444427.

It is an arithmetic number, because the mean of its divisors is an integer number (967906056).

Almost surely, 2^29161399632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29161399632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38716242240).

29161399632 is an abundant number, since it is smaller than the sum of its proper divisors (48271084848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29161399632 is a wasteful number, since it uses less digits than its factorization.

29161399632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380 (or 13374 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The spelling of 29161399632 in words is "twenty-nine billion, one hundred sixty-one million, three hundred ninety-nine thousand, six hundred thirty-two".