20153206715 has 8 divisors (see below), whose sum is σ = 24332216208. Its totient is φ = 16023653280.

The previous prime is 20153206693. The next prime is 20153206769. The reversal of 20153206715 is 51760235102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20153206715 - 2¹⁰ = 20153205691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12363116 + ... + 12364745.

It is an arithmetic number, because the mean of its divisors is an integer number (3041527026).

Almost surely, 2^20153206715 is an apocalyptic number.

20153206715 is a deficient number, since it is larger than the sum of its proper divisors (4179009493).

20153206715 is a wasteful number, since it uses less digits than its factorization.

20153206715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24728029.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 20153206715 in words is "twenty billion, one hundred fifty-three million, two hundred six thousand, seven hundred fifteen".