15620202101066 has 8 divisors (see below), whose sum is σ = 23438226834180. Its totient is φ = 7807459823008.

The previous prime is 15620202101057. The next prime is 15620202101089. The reversal of 15620202101066 is 66010120202651.

It can be written as a sum of positive squares in 2 ways, for example, as 14226633656041 + 1393568445025 = 3771821^2 + 1180495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320606371 + ... + 1320618198.

Almost surely, 2^{15620202101066} is an apocalyptic number.

15620202101066 is a deficient number, since it is larger than the sum of its proper divisors (7818024733114).

15620202101066 is a wasteful number, since it uses less digits than its factorization.

15620202101066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641227528.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 15620202101066 in words is "fifteen trillion, six hundred twenty billion, two hundred two million, one hundred one thousand, sixty-six".