20005271066615 has 8 divisors (see below), whose sum is σ = 24007052127840. Its totient is φ = 16003732288032.

The previous prime is 20005271066597. The next prime is 20005271066639. The reversal of 20005271066615 is 51666017250002.

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 20005271066615 - 2⁴² = 15607224555511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60388955 + ... + 60719324.

It is an arithmetic number, because the mean of its divisors is an integer number (3000881515980).

Almost surely, 2^{20005271066615} is an apocalyptic number.

20005271066615 is a deficient number, since it is larger than the sum of its proper divisors (4001781061225).

20005271066615 is a wasteful number, since it uses less digits than its factorization.

20005271066615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121141321.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 20005271066615 in words is "twenty trillion, five billion, two hundred seventy-one million, sixty-six thousand, six hundred fifteen".