211628082501 has 12 divisors (see below), whose sum is σ = 333474554400. Its totient is φ = 128259443880.

The previous prime is 211628082487. The next prime is 211628082511. The reversal of 211628082501 is 105280826112.

211628082501 is a `hidden beast` number, since 2 + 1 + 1 + 628 + 0 + 8 + 25 + 0 + 1 = 666.

It is not a de Polignac number, because 211628082501 - 2⁶ = 211628082437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211628082511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1068828601 + ... + 1068828798.

It is an arithmetic number, because the mean of its divisors is an integer number (27789546200).

Almost surely, 2^211628082501 is an apocalyptic number.

It is an amenable number.

211628082501 is a deficient number, since it is larger than the sum of its proper divisors (121846471899).

211628082501 is a wasteful number, since it uses less digits than its factorization.

211628082501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137657416 (or 2137657413 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 211628082501 in words is "two hundred eleven billion, six hundred twenty-eight million, eighty-two thousand, five hundred one".