109712945545 has 32 divisors (see below), whose sum is σ = 161614944000. Its totient is φ = 71272147968.

The previous prime is 109712945539. The next prime is 109712945561. The reversal of 109712945545 is 545549217901.

It is not a de Polignac number, because 109712945545 - 2⁵ = 109712945513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109712945492 and 109712945501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1650904 + ... + 1716073.

It is an arithmetic number, because the mean of its divisors is an integer number (5050467000).

Almost surely, 2^109712945545 is an apocalyptic number.

It is an amenable number.

109712945545 is a deficient number, since it is larger than the sum of its proper divisors (51901998455).

109712945545 is an equidigital number, since it uses as much as digits as its factorization.

109712945545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367022 (or 3367008 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 109712945545 in words is "one hundred nine billion, seven hundred twelve million, nine hundred forty-five thousand, five hundred forty-five".