20557101541 has 8 divisors (see below), whose sum is σ = 20791520640. Its totient is φ = 20322759072.

The previous prime is 20557101463. The next prime is 20557101571. The reversal of 20557101541 is 14510175502.

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 20557101541 - 2²⁷ = 20422883813 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 (20557101571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654196 + ... + 684898.

It is an arithmetic number, because the mean of its divisors is an integer number (2598940080).

Almost surely, 2^20557101541 is an apocalyptic number.

It is an amenable number.

20557101541 is a deficient number, since it is larger than the sum of its proper divisors (234419099).

20557101541 is an equidigital number, since it uses as much as digits as its factorization.

20557101541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38315.

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 20557101541 in words is "twenty billion, five hundred fifty-seven million, one hundred one thousand, five hundred forty-one".