172406332703 has 16 divisors (see below), whose sum is σ = 191189227392. Its totient is φ = 154142412000.

The previous prime is 172406332699. The next prime is 172406332723. The reversal of 172406332703 is 307233604271.

It is a cyclic number.

It is not a de Polignac number, because 172406332703 - 2² = 172406332699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172406332723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6839000 + ... + 6864162.

It is an arithmetic number, because the mean of its divisors is an integer number (11949326712).

Almost surely, 2^172406332703 is an apocalyptic number.

172406332703 is a deficient number, since it is larger than the sum of its proper divisors (18782894689).

172406332703 is a wasteful number, since it uses less digits than its factorization.

172406332703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35446.

The product of its (nonzero) digits is 127008, while the sum is 38.

Adding to 172406332703 its reverse (307233604271), we get a palindrome (479639936974).

The spelling of 172406332703 in words is "one hundred seventy-two billion, four hundred six million, three hundred thirty-two thousand, seven hundred three".