155005500005 has 8 divisors (see below), whose sum is σ = 186524726400. Its totient is φ = 123658982416.

The previous prime is 155005499863. The next prime is 155005500007. The reversal of 155005500005 is 500005500551.

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

It is a cyclic number.

It is not a de Polignac number, because 155005500005 - 2²⁰ = 155004451429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155005500007) 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, 43175225 + ... + 43178814.

It is an arithmetic number, because the mean of its divisors is an integer number (23315590800).

Almost surely, 2^155005500005 is an apocalyptic number.

It is an amenable number.

155005500005 is a deficient number, since it is larger than the sum of its proper divisors (31519226395).

155005500005 is an equidigital number, since it uses as much as digits as its factorization.

155005500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86354403.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 155005500005 in words is "one hundred fifty-five billion, five million, five hundred thousand, five".