123161581627 has 8 divisors (see below), whose sum is σ = 140760891392. Its totient is φ = 105563471400.

The previous prime is 123161581597. The next prime is 123161581663. The reversal of 123161581627 is 726185161321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123161581627 - 2¹⁹ = 123161057339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123161581327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67899 + ... + 500932.

It is an arithmetic number, because the mean of its divisors is an integer number (17595111424).

Almost surely, 2^123161581627 is an apocalyptic number.

123161581627 is a deficient number, since it is larger than the sum of its proper divisors (17599309765).

123161581627 is an equidigital number, since it uses as much as digits as its factorization.

123161581627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599769.

The product of its digits is 120960, while the sum is 43.

The spelling of 123161581627 in words is "one hundred twenty-three billion, one hundred sixty-one million, five hundred eighty-one thousand, six hundred twenty-seven".