20008061163215 has 4 divisors (see below), whose sum is σ = 24009673395864. Its totient is φ = 16006448930568.

The previous prime is 20008061163203. The next prime is 20008061163283. The reversal of 20008061163215 is 51236116080002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20008061163215 - 2¹⁶ = 20008061097679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000806116317 + ... + 2000806116326.

It is an arithmetic number, because the mean of its divisors is an integer number (6002418348966).

Almost surely, 2^{20008061163215} is an apocalyptic number.

20008061163215 is a deficient number, since it is larger than the sum of its proper divisors (4001612232649).

20008061163215 is an equidigital number, since it uses as much as digits as its factorization.

20008061163215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001612232648.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 20008061163215 in words is "twenty trillion, eight billion, sixty-one million, one hundred sixty-three thousand, two hundred fifteen".