210125065405 has 16 divisors (see below), whose sum is σ = 268046138304. Its totient is φ = 157581472000.

The previous prime is 210125065379. The next prime is 210125065417. The reversal of 210125065405 is 504560521012.

It is not a de Polignac number, because 210125065405 - 2⁷ = 210125065277 is a prime.

It is a super-2 number, since 2×210125065405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 4903087 + ... + 4945756.

It is an arithmetic number, because the mean of its divisors is an integer number (16752883644).

Almost surely, 2^210125065405 is an apocalyptic number.

It is an amenable number.

210125065405 is a deficient number, since it is larger than the sum of its proper divisors (57921072899).

210125065405 is a wasteful number, since it uses less digits than its factorization.

210125065405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9849116.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 210125065405 its reverse (504560521012), we get a palindrome (714685586417).

The spelling of 210125065405 in words is "two hundred ten billion, one hundred twenty-five million, sixty-five thousand, four hundred five".