15166416641 has 16 divisors (see below), whose sum is σ = 15947635536. Its totient is φ = 14409600000.

The previous prime is 15166416623. The next prime is 15166416649. The reversal of 15166416641 is 14661466151.

It can be written as a sum of positive squares in 8 ways, for example, as 110145025 + 15056271616 = 10495^2 + 122704^2 .

It is a cyclic number.

It is not a de Polignac number, because 15166416641 - 2¹⁴ = 15166400257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15166416649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222581 + ... + 282621.

It is an arithmetic number, because the mean of its divisors is an integer number (996727221).

Almost surely, 2^15166416641 is an apocalyptic number.

It is an amenable number.

15166416641 is a deficient number, since it is larger than the sum of its proper divisors (781218895).

15166416641 is a wasteful number, since it uses less digits than its factorization.

15166416641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60244.

The product of its digits is 103680, while the sum is 41.

The spelling of 15166416641 in words is "fifteen billion, one hundred sixty-six million, four hundred sixteen thousand, six hundred forty-one".