10506990722 has 6 divisors (see below), whose sum is σ = 15760703529. Its totient is φ = 5253422880.

The previous prime is 10506990721. The next prime is 10506990733. The reversal of 10506990722 is 22709960501.

It can be written as a sum of positive squares in 2 ways, for example, as 10306513441 + 200477281 = 101521^2 + 14159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=72481.

It is a super-2 number, since 2×10506990722² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10506990722.

It is not an unprimeable number, because it can be changed into a prime (10506990721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 108722 + ... + 181202.

Almost surely, 2^10506990722 is an apocalyptic number.

10506990722 is a deficient number, since it is larger than the sum of its proper divisors (5253712807).

10506990722 is an frugal number, since it uses more digits than its factorization.

10506990722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144964 (or 72483 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 10506990722 in words is "ten billion, five hundred six million, nine hundred ninety thousand, seven hundred twenty-two".