15672121125 has 16 divisors (see below), whose sum is σ = 26078410176. Its totient is φ = 8358464400.

The previous prime is 15672121121. The next prime is 15672121141. The reversal of 15672121125 is 52112127651.

It is not a de Polignac number, because 15672121125 - 2² = 15672121121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15672121121) 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, 20895787 + ... + 20896536.

It is an arithmetic number, because the mean of its divisors is an integer number (1629900636).

Almost surely, 2^15672121125 is an apocalyptic number.

15672121125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15672121125 is a deficient number, since it is larger than the sum of its proper divisors (10406289051).

15672121125 is an equidigital number, since it uses as much as digits as its factorization.

15672121125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41792341 (or 41792331 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

Adding to 15672121125 its reverse (52112127651), we get a palindrome (67784248776).

The spelling of 15672121125 in words is "fifteen billion, six hundred seventy-two million, one hundred twenty-one thousand, one hundred twenty-five".