20452534205615 has 8 divisors (see below), whose sum is σ = 24543113026320. Its totient is φ = 16361979378112.

The previous prime is 20452534205557. The next prime is 20452534205627. The reversal of 20452534205615 is 51650243525402.

It is a happy number.

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 20452534205615 - 2¹⁴ = 20452534189231 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, 4066385 + ... + 7578954.

It is an arithmetic number, because the mean of its divisors is an integer number (3067889128290).

Almost surely, 2^{20452534205615} is an apocalyptic number.

20452534205615 is a deficient number, since it is larger than the sum of its proper divisors (4090578820705).

20452534205615 is a wasteful number, since it uses less digits than its factorization.

20452534205615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11996601.

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 20452534205615 in words is "twenty trillion, four hundred fifty-two billion, five hundred thirty-four million, two hundred five thousand, six hundred fifteen".