20210261541 has 32 divisors (see below), whose sum is σ = 27762352128. Its totient is φ = 13073148480.

The previous prime is 20210261507. The next prime is 20210261549. The reversal of 20210261541 is 14516201202.

It is not a de Polignac number, because 20210261541 - 2⁷ = 20210261413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210261549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4895020 + ... + 4899146.

It is an arithmetic number, because the mean of its divisors is an integer number (867573504).

Almost surely, 2^20210261541 is an apocalyptic number.

It is an amenable number.

20210261541 is a deficient number, since it is larger than the sum of its proper divisors (7552090587).

20210261541 is a wasteful number, since it uses less digits than its factorization.

20210261541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20210261541 its reverse (14516201202), we get a palindrome (34726462743).

The spelling of 20210261541 in words is "twenty billion, two hundred ten million, two hundred sixty-one thousand, five hundred forty-one".