29955257545643 has 4 divisors (see below), whose sum is σ = 30988197461040. Its totient is φ = 28922317630248.

The previous prime is 29955257545637. The next prime is 29955257545663. The reversal of 29955257545643 is 34654575255992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29955257545643 - 2⁴ = 29955257545627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29955257545663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516469957655 + ... + 516469957712.

It is an arithmetic number, because the mean of its divisors is an integer number (7747049365260).

Almost surely, 2^{29955257545643} is an apocalyptic number.

29955257545643 is a deficient number, since it is larger than the sum of its proper divisors (1032939915397).

29955257545643 is a wasteful number, since it uses less digits than its factorization.

29955257545643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032939915396.

The product of its digits is 2041200000, while the sum is 71.

The spelling of 29955257545643 in words is "twenty-nine trillion, nine hundred fifty-five billion, two hundred fifty-seven million, five hundred forty-five thousand, six hundred forty-three".