20415532050165 has 32 divisors (see below), whose sum is σ = 37842645724416. Its totient is φ = 9204967872000.

The previous prime is 20415532050157. The next prime is 20415532050247. The reversal of 20415532050165 is 56105023551402.

It is not a de Polignac number, because 20415532050165 - 2³ = 20415532050157 is a prime.

It is a congruent number.

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, 1331729586 + ... + 1331744915.

It is an arithmetic number, because the mean of its divisors is an integer number (1182582678888).

Almost surely, 2^{20415532050165} is an apocalyptic number.

It is an amenable number.

20415532050165 is a deficient number, since it is larger than the sum of its proper divisors (17427113674251).

20415532050165 is a wasteful number, since it uses less digits than its factorization.

20415532050165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663474589.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 20415532050165 in words is "twenty trillion, four hundred fifteen billion, five hundred thirty-two million, fifty thousand, one hundred sixty-five".