15155021345 has 8 divisors (see below), whose sum is σ = 18190961640. Its totient is φ = 12120726400.

The previous prime is 15155021341. The next prime is 15155021359. The reversal of 15155021345 is 54312055151.

It can be written as a sum of positive squares in 4 ways, for example, as 345104929 + 14809916416 = 18577^2 + 121696^2 .

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

It is not a de Polignac number, because 15155021345 - 2² = 15155021341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15155021341) 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, 390980 + ... + 427989.

It is an arithmetic number, because the mean of its divisors is an integer number (2273870205).

Almost surely, 2^15155021345 is an apocalyptic number.

It is an amenable number.

15155021345 is a deficient number, since it is larger than the sum of its proper divisors (3035940295).

15155021345 is an equidigital number, since it uses as much as digits as its factorization.

15155021345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822675.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 15155021345 its reverse (54312055151), we get a palindrome (69467076496).

The spelling of 15155021345 in words is "fifteen billion, one hundred fifty-five million, twenty-one thousand, three hundred forty-five".