20001615011 has 8 divisors (see below), whose sum is σ = 23080921344. Its totient is φ = 16977791880.

The previous prime is 20001614987. The next prime is 20001615041. The reversal of 20001615011 is 11051610002.

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

It is not a de Polignac number, because 20001615011 - 2³⁰ = 18927873187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001615041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13870025 + ... + 13871466.

It is an arithmetic number, because the mean of its divisors is an integer number (2885115168).

Almost surely, 2^20001615011 is an apocalyptic number.

20001615011 is a deficient number, since it is larger than the sum of its proper divisors (3079306333).

20001615011 is a wasteful number, since it uses less digits than its factorization.

20001615011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27741601.

The product of its (nonzero) digits is 60, while the sum is 17.

The spelling of 20001615011 in words is "twenty billion, one million, six hundred fifteen thousand, eleven".