172229623340 has 24 divisors (see below), whose sum is σ = 363182975232. Its totient is φ = 68605989120.

The previous prime is 172229623333. The next prime is 172229623351. The reversal of 172229623340 is 43326922271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17861324 + ... + 17870963.

It is an arithmetic number, because the mean of its divisors is an integer number (15132623968).

Almost surely, 2^172229623340 is an apocalyptic number.

172229623340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172229623340 is an abundant number, since it is smaller than the sum of its proper divisors (190953351892).

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

172229623340 is a wasteful number, since it uses less digits than its factorization.

172229623340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35732537 (or 35732535 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 172229623340 in words is "one hundred seventy-two billion, two hundred twenty-nine million, six hundred twenty-three thousand, three hundred forty".