15541430012 has 48 divisors (see below), whose sum is σ = 28595481600. Its totient is φ = 7380996480.

The previous prime is 15541429999. The next prime is 15541430059. The reversal of 15541430012 is 21003414551.

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, 6283208 + ... + 6285680.

It is an arithmetic number, because the mean of its divisors is an integer number (595739200).

Almost surely, 2^15541430012 is an apocalyptic number.

It is an amenable number.

15541430012 is a deficient number, since it is larger than the sum of its proper divisors (13054051588).

15541430012 is a wasteful number, since it uses less digits than its factorization.

15541430012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426 (or 3424 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 15541430012 its reverse (21003414551), we get a palindrome (36544844563).

The spelling of 15541430012 in words is "fifteen billion, five hundred forty-one million, four hundred thirty thousand, twelve".