17640122372 has 48 divisors (see below), whose sum is σ = 32029949952. Its totient is φ = 8495172000.

The previous prime is 17640122363. The next prime is 17640122393. The reversal of 17640122372 is 27322104671.

It is a super-2 number, since 2×17640122372² (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 15 ways as a sum of consecutive naturals, for example, 4444733 + ... + 4448699.

It is an arithmetic number, because the mean of its divisors is an integer number (667290624).

Almost surely, 2^17640122372 is an apocalyptic number.

It is an amenable number.

17640122372 is a deficient number, since it is larger than the sum of its proper divisors (14389827580).

17640122372 is a wasteful number, since it uses less digits than its factorization.

17640122372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368 (or 4366 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 17640122372 in words is "seventeen billion, six hundred forty million, one hundred twenty-two thousand, three hundred seventy-two".