15487641165864 has 32 divisors (see below), whose sum is σ = 44250403331520. Its totient is φ = 4425040333056.

The previous prime is 15487641165847. The next prime is 15487641165881. The reversal of 15487641165864 is 46856114678451.

It is a happy number.

15487641165864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15487641165847) and next prime (15487641165881).

It is a junction number, because it is equal to n+sod(n) for n = 15487641165795 and 15487641165804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46094169969 + ... + 46094170304.

It is an arithmetic number, because the mean of its divisors is an integer number (1382825104110).

Almost surely, 2^{15487641165864} is an apocalyptic number.

15487641165864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15487641165864 is an abundant number, since it is smaller than the sum of its proper divisors (28762762165656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15487641165864 is a wasteful number, since it uses less digits than its factorization.

15487641165864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92188340289 (or 92188340285 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 66.

The spelling of 15487641165864 in words is "fifteen trillion, four hundred eighty-seven billion, six hundred forty-one million, one hundred sixty-five thousand, eight hundred sixty-four".