20061620111 has 8 divisors (see below), whose sum is σ = 21681167760. Its totient is φ = 18452979072.

The previous prime is 20061620101. The next prime is 20061620141. The reversal of 20061620111 is 11102616002.

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 20061620111 - 2¹⁰ = 20061619087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061620101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2722826 + ... + 2730183.

It is an arithmetic number, because the mean of its divisors is an integer number (2710145970).

Almost surely, 2^20061620111 is an apocalyptic number.

20061620111 is a deficient number, since it is larger than the sum of its proper divisors (1619547649).

20061620111 is a wasteful number, since it uses less digits than its factorization.

20061620111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5453305.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 20061620111 in words is "twenty billion, sixty-one million, six hundred twenty thousand, one hundred eleven".