2021700755 has 8 divisors (see below), whose sum is σ = 2428102224. Its totient is φ = 1615986400.

The previous prime is 2021700731. The next prime is 2021700773. The reversal of 2021700755 is 5570071202.

2021700755 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2021700755 - 2¹⁶ = 2021635219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 165281 + ... + 177090.

It is an arithmetic number, because the mean of its divisors is an integer number (303512778).

Almost surely, 2^2021700755 is an apocalyptic number.

2021700755 is a deficient number, since it is larger than the sum of its proper divisors (406401469).

2021700755 is a wasteful number, since it uses less digits than its factorization.

2021700755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343557.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 2021700755 is about 44963.3267786093. The cubic root of 2021700755 is about 1264.4615402705.

Adding to 2021700755 its reverse (5570071202), we get a palindrome (7591771957).

The spelling of 2021700755 in words is "two billion, twenty-one million, seven hundred thousand, seven hundred fifty-five".