10145552215566 has 32 divisors (see below), whose sum is σ = 20345386089600. Its totient is φ = 3372805608480.

The previous prime is 10145552215529. The next prime is 10145552215633. The reversal of 10145552215566 is 66551225554101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22677345 + ... + 23120403.

It is an arithmetic number, because the mean of its divisors is an integer number (635793315300).

Almost surely, 2^{10145552215566} is an apocalyptic number.

10145552215566 is an abundant number, since it is smaller than the sum of its proper divisors (10199833874034).

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

10145552215566 is a wasteful number, since it uses less digits than its factorization.

10145552215566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453264.

The product of its (nonzero) digits is 1800000, while the sum is 48.

Adding to 10145552215566 its reverse (66551225554101), we get a palindrome (76696777769667).

The spelling of 10145552215566 in words is "ten trillion, one hundred forty-five billion, five hundred fifty-two million, two hundred fifteen thousand, five hundred sixty-six".