10251406421166 has 16 divisors (see below), whose sum is σ = 20533924857600. Its totient is φ = 3411950137848.

The previous prime is 10251406421149. The next prime is 10251406421167. The reversal of 10251406421166 is 66112460415201.

10251406421166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10251406421166² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10251406421167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296329686 + ... + 1296337593.

It is an arithmetic number, because the mean of its divisors is an integer number (1283370303600).

Almost surely, 2^{10251406421166} is an apocalyptic number.

10251406421166 is an abundant number, since it is smaller than the sum of its proper divisors (10282518436434).

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

10251406421166 is a wasteful number, since it uses less digits than its factorization.

10251406421166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592667943.

The product of its (nonzero) digits is 69120, while the sum is 39.

Adding to 10251406421166 its reverse (66112460415201), we get a palindrome (76363866836367).

The spelling of 10251406421166 in words is "ten trillion, two hundred fifty-one billion, four hundred six million, four hundred twenty-one thousand, one hundred sixty-six".