10168434261 has 6 divisors (see below), whose sum is σ = 14687738390. Its totient is φ = 6778956168.

The previous prime is 10168434253. The next prime is 10168434277. The reversal of 10168434261 is 16243486101.

10168434261 is a `hidden beast` number, since 1 + 0 + 168 + 434 + 2 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7170871761 + 2997562500 = 84681^2 + 54750^2 .

It is not a de Polignac number, because 10168434261 - 2³ = 10168434253 is a prime.

It is a super-2 number, since 2×10168434261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10168439261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564913006 + ... + 564913023.

Almost surely, 2^10168434261 is an apocalyptic number.

It is an amenable number.

10168434261 is a deficient number, since it is larger than the sum of its proper divisors (4519304129).

10168434261 is a wasteful number, since it uses less digits than its factorization.

10168434261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129826035 (or 1129826032 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 10168434261 in words is "ten billion, one hundred sixty-eight million, four hundred thirty-four thousand, two hundred sixty-one".