20115155515002 has 8 divisors (see below), whose sum is σ = 40230311030016. Its totient is φ = 6705051838332.

The previous prime is 20115155515001. The next prime is 20115155515099. The reversal of 20115155515002 is 20051555151102.

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

20115155515002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20115155515001) 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, 1676262959578 + ... + 1676262959589.

It is an arithmetic number, because the mean of its divisors is an integer number (5028788878752).

Almost surely, 2^{20115155515002} is an apocalyptic number.

20115155515002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20115155515002 is a wasteful number, since it uses less digits than its factorization.

20115155515002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352525919172.

The product of its (nonzero) digits is 12500, while the sum is 33.

The spelling of 20115155515002 in words is "twenty trillion, one hundred fifteen billion, one hundred fifty-five million, five hundred fifteen thousand, two".