123166003625 has 16 divisors (see below), whose sum is σ = 175669912704. Its totient is φ = 84456687600.

The previous prime is 123166003601. The next prime is 123166003669. The reversal of 123166003625 is 526300661321.

It is not a de Polignac number, because 123166003625 - 2¹⁶ = 123165938089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian 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, 70379699 + ... + 70381448.

It is an arithmetic number, because the mean of its divisors is an integer number (10979369544).

Almost surely, 2^123166003625 is an apocalyptic number.

It is an amenable number.

123166003625 is a deficient number, since it is larger than the sum of its proper divisors (52503909079).

123166003625 is an equidigital number, since it uses as much as digits as its factorization.

123166003625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140761169 (or 140761159 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 123166003625 its reverse (526300661321), we get a palindrome (649466664946).

The spelling of 123166003625 in words is "one hundred twenty-three billion, one hundred sixty-six million, three thousand, six hundred twenty-five".