20835256101 has 32 divisors (see below), whose sum is σ = 30718033920. Its totient is φ = 12455976000.

The previous prime is 20835256093. The next prime is 20835256111. The reversal of 20835256101 is 10165253802.

It is not a de Polignac number, because 20835256101 - 2³ = 20835256093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20835256111) 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 31 ways as a sum of consecutive naturals, for example, 3388636 + ... + 3394778.

It is an arithmetic number, because the mean of its divisors is an integer number (959938560).

Almost surely, 2^20835256101 is an apocalyptic number.

It is an amenable number.

20835256101 is a deficient number, since it is larger than the sum of its proper divisors (9882777819).

20835256101 is a wasteful number, since it uses less digits than its factorization.

20835256101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 20835256101 in words is "twenty billion, eight hundred thirty-five million, two hundred fifty-six thousand, one hundred one".