14976572221 has 4 divisors (see below), whose sum is σ = 16128616252. Its totient is φ = 13824528192.

The previous prime is 14976572159. The next prime is 14976572239. The reversal of 14976572221 is 12227567941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4600908900 + 10375663321 = 67830^2 + 101861^2 .

It is a cyclic number.

It is not a de Polignac number, because 14976572221 - 2²¹ = 14974475069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14976542221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576021996 + ... + 576022021.

It is an arithmetic number, because the mean of its divisors is an integer number (4032154063).

Almost surely, 2^14976572221 is an apocalyptic number.

It is an amenable number.

14976572221 is a deficient number, since it is larger than the sum of its proper divisors (1152044031).

14976572221 is a wasteful number, since it uses less digits than its factorization.

14976572221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152044030.

The product of its digits is 423360, while the sum is 46.

The spelling of 14976572221 in words is "fourteen billion, nine hundred seventy-six million, five hundred seventy-two thousand, two hundred twenty-one".