20370638047145 has 24 divisors (see below), whose sum is σ = 24659690723520. Its totient is φ = 16154449552800.

The previous prime is 20370638047121. The next prime is 20370638047171. The reversal of 20370638047145 is 54174083607302.

It is not a de Polignac number, because 20370638047145 - 2²⁸ = 20370369611689 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20370638047093 and 20370638047102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78725630 + ... + 78983960.

It is an arithmetic number, because the mean of its divisors is an integer number (1027487113480).

Almost surely, 2^{20370638047145} is an apocalyptic number.

It is an amenable number.

20370638047145 is a deficient number, since it is larger than the sum of its proper divisors (4289052676375).

20370638047145 is an equidigital number, since it uses as much as digits as its factorization.

20370638047145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259517 (or 259386 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 20370638047145 in words is "twenty trillion, three hundred seventy billion, six hundred thirty-eight million, forty-seven thousand, one hundred forty-five".