20606015640016 has 80 divisors (see below), whose sum is σ = 42041149416448. Its totient is φ = 9772055654400.

The previous prime is 20606015639953. The next prime is 20606015640053. The reversal of 20606015640016 is 61004651060602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2876446 + ... + 7034626.

Almost surely, 2^{20606015640016} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20606015640016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21020574708224).

20606015640016 is an abundant number, since it is smaller than the sum of its proper divisors (21435133776432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20606015640016 is a wasteful number, since it uses less digits than its factorization.

20606015640016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158420 (or 4158414 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 20606015640016 in words is "twenty trillion, six hundred six billion, fifteen million, six hundred forty thousand, sixteen".