161416623603 has 8 divisors (see below), whose sum is σ = 215251079616. Its totient is φ = 107596625000.

The previous prime is 161416623523. The next prime is 161416623607. The reversal of 161416623603 is 306326614161.

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 161416623603 - 2⁹ = 161416623091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161416623607) 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, 3588273 + ... + 3632978.

It is an arithmetic number, because the mean of its divisors is an integer number (26906384952).

Almost surely, 2^161416623603 is an apocalyptic number.

161416623603 is a deficient number, since it is larger than the sum of its proper divisors (53834456013).

161416623603 is an equidigital number, since it uses as much as digits as its factorization.

161416623603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228705.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 161416623603 in words is "one hundred sixty-one billion, four hundred sixteen million, six hundred twenty-three thousand, six hundred three".