156005505005 has 16 divisors (see below), whose sum is σ = 214053318144. Its totient is φ = 106923747840.

The previous prime is 156005504999. The next prime is 156005505023. The reversal of 156005505005 is 500505500651.

It is not a de Polignac number, because 156005505005 - 2¹² = 156005500909 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 998117 + ... + 1143786.

It is an arithmetic number, because the mean of its divisors is an integer number (13378332384).

Almost surely, 2^156005505005 is an apocalyptic number.

It is an amenable number.

156005505005 is a deficient number, since it is larger than the sum of its proper divisors (58047813139).

156005505005 is a wasteful number, since it uses less digits than its factorization.

156005505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143996.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 156005505005 in words is "one hundred fifty-six billion, five million, five hundred five thousand, five".