14661221602 has 4 divisors (see below), whose sum is σ = 21991832406. Its totient is φ = 7330610800.

The previous prime is 14661221593. The next prime is 14661221629. The reversal of 14661221602 is 20612216641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20612216641 = 827 ⋅24924083.

It can be written as a sum of positive squares in only one way, i.e., 14481956281 + 179265321 = 120341^2 + 13389^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3665305399 + ... + 3665305402.

Almost surely, 2^14661221602 is an apocalyptic number.

14661221602 is a deficient number, since it is larger than the sum of its proper divisors (7330610804).

14661221602 is an equidigital number, since it uses as much as digits as its factorization.

14661221602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330610803.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 14661221602 in words is "fourteen billion, six hundred sixty-one million, two hundred twenty-one thousand, six hundred two".