10002172605 has 16 divisors (see below), whose sum is σ = 16035304320. Its totient is φ = 5323882688.

The previous prime is 10002172577. The next prime is 10002172619. The reversal of 10002172605 is 50627120001.

It is a cyclic number.

It is not a de Polignac number, because 10002172605 - 2¹² = 10002168509 is a prime.

It is a congruent number.

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, 655290 + ... + 670379.

It is an arithmetic number, because the mean of its divisors is an integer number (1002206520).

Almost surely, 2^10002172605 is an apocalyptic number.

10002172605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10002172605 is a deficient number, since it is larger than the sum of its proper divisors (6033131715).

10002172605 is a wasteful number, since it uses less digits than its factorization.

10002172605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326180.

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 10002172605 its reverse (50627120001), we get a palindrome (60629292606).

The spelling of 10002172605 in words is "ten billion, two million, one hundred seventy-two thousand, six hundred five".