10142400021566 has 16 divisors (see below), whose sum is σ = 15361578492000. Its totient is φ = 5021875611648.

The previous prime is 10142400021557. The next prime is 10142400021613. The reversal of 10142400021566 is 66512000424101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12011210 + ... + 12827858.

It is an arithmetic number, because the mean of its divisors is an integer number (960098655750).

Almost surely, 2^{10142400021566} is an apocalyptic number.

10142400021566 is a deficient number, since it is larger than the sum of its proper divisors (5219178470434).

10142400021566 is a wasteful number, since it uses less digits than its factorization.

10142400021566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877043.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 10142400021566 its reverse (66512000424101), we get a palindrome (76654400445667).

The spelling of 10142400021566 in words is "ten trillion, one hundred forty-two billion, four hundred million, twenty-one thousand, five hundred sixty-six".