10000015806 has 16 divisors (see below), whose sum is σ = 21818216448. Its totient is φ = 3030307800.

The previous prime is 10000015793. The next prime is 10000015807. The reversal of 10000015806 is 60851000001.

It is a super-2 number, since 2×10000015806² (a number of 21 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 (10000015807) 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, 75757630 + ... + 75757761.

It is an arithmetic number, because the mean of its divisors is an integer number (1363638528).

Almost surely, 2^10000015806 is an apocalyptic number.

10000015806 is an abundant number, since it is smaller than the sum of its proper divisors (11818200642).

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

10000015806 is a wasteful number, since it uses less digits than its factorization.

10000015806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151515407.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 10000015806 its reverse (60851000001), we get a palindrome (70851015807).

The spelling of 10000015806 in words is "ten billion, fifteen thousand, eight hundred six".