15212451116 has 6 divisors (see below), whose sum is σ = 26621789460. Its totient is φ = 7606225556.

The previous prime is 15212451053. The next prime is 15212451157. The reversal of 15212451116 is 61115421251.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1901556386 + ... + 1901556393.

It is an arithmetic number, because the mean of its divisors is an integer number (4436964910).

Almost surely, 2^15212451116 is an apocalyptic number.

It is an amenable number.

15212451116 is a deficient number, since it is larger than the sum of its proper divisors (11409338344).

15212451116 is a wasteful number, since it uses less digits than its factorization.

15212451116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803112783 (or 3803112781 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

Adding to 15212451116 its reverse (61115421251), we get a palindrome (76327872367).

The spelling of 15212451116 in words is "fifteen billion, two hundred twelve million, four hundred fifty-one thousand, one hundred sixteen".