1551555000115 has 4 divisors (see below), whose sum is σ = 1861866000144. Its totient is φ = 1241244000088.

The previous prime is 1551555000109. The next prime is 1551555000167. The reversal of 1551555000115 is 5110005551551.

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 1551555000115 - 2¹¹ = 1551554998067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155155500007 + ... + 155155500016.

It is an arithmetic number, because the mean of its divisors is an integer number (465466500036).

Almost surely, 2^{1551555000115} is an apocalyptic number.

1551555000115 is a deficient number, since it is larger than the sum of its proper divisors (310311000029).

1551555000115 is an equidigital number, since it uses as much as digits as its factorization.

1551555000115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310311000028.

The product of its (nonzero) digits is 15625, while the sum is 34.

The spelling of 1551555000115 in words is "one trillion, five hundred fifty-one billion, five hundred fifty-five million, one hundred fifteen", and thus it is an aban number.