15120315415 has 16 divisors (see below), whose sum is σ = 18255476736. Its totient is φ = 12022365600.

The previous prime is 15120315409. The next prime is 15120315439. The reversal of 15120315415 is 51451302151.

It is a de Polignac number, because none of the positive numbers 2^k-15120315415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692820 + ... + 714310.

It is an arithmetic number, because the mean of its divisors is an integer number (1140967296).

Almost surely, 2^15120315415 is an apocalyptic number.

15120315415 is a deficient number, since it is larger than the sum of its proper divisors (3135161321).

15120315415 is a wasteful number, since it uses less digits than its factorization.

15120315415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22350.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 15120315415 its reverse (51451302151), we get a palindrome (66571617566).

The spelling of 15120315415 in words is "fifteen billion, one hundred twenty million, three hundred fifteen thousand, four hundred fifteen".