10721706170 has 48 divisors (see below), whose sum is σ = 22480222248. Its totient is φ = 3671055360.

The previous prime is 10721706161. The next prime is 10721706181. The reversal of 10721706170 is 7160712701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7559780809 + 3161925361 = 86947^2 + 56231^2 .

It is a super-2 number, since 2×10721706170² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358514 + ... + 387266.

Almost surely, 2^10721706170 is an apocalyptic number.

10721706170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10721706170 is an abundant number, since it is smaller than the sum of its proper divisors (11758516078).

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

10721706170 is a wasteful number, since it uses less digits than its factorization.

10721706170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29535 (or 29528 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 32.

The spelling of 10721706170 in words is "ten billion, seven hundred twenty-one million, seven hundred six thousand, one hundred seventy".