20617207156050 has 96 divisors (see below), whose sum is σ = 51187973760000. Its totient is φ = 5491763741760.

The previous prime is 20617207156019. The next prime is 20617207156079. The reversal of 20617207156050 is 5065170271602.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20617207155993 and 20617207156011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 593334777 + ... + 593369523.

It is an arithmetic number, because the mean of its divisors is an integer number (533208060000).

Almost surely, 2^{20617207156050} is an apocalyptic number.

20617207156050 is an abundant number, since it is smaller than the sum of its proper divisors (30570766603950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20617207156050 is a wasteful number, since it uses less digits than its factorization.

20617207156050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39080 (or 39075 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 20617207156050 in words is "twenty trillion, six hundred seventeen billion, two hundred seven million, one hundred fifty-six thousand, fifty".