15155296121 has 8 divisors (see below), whose sum is σ = 17723137344. Its totient is φ = 12688154640.

The previous prime is 15155296111. The next prime is 15155296139. The reversal of 15155296121 is 12169255151.

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

It is not a de Polignac number, because 15155296121 - 2¹⁸ = 15155033977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15155296111) 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, 25174610 + ... + 25175211.

It is an arithmetic number, because the mean of its divisors is an integer number (2215392168).

Almost surely, 2^15155296121 is an apocalyptic number.

It is an amenable number.

15155296121 is a deficient number, since it is larger than the sum of its proper divisors (2567841223).

15155296121 is an equidigital number, since it uses as much as digits as its factorization.

15155296121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50349871.

The product of its digits is 27000, while the sum is 38.

The spelling of 15155296121 in words is "fifteen billion, one hundred fifty-five million, two hundred ninety-six thousand, one hundred twenty-one".