20355877011 has 8 divisors (see below), whose sum is σ = 27169652880. Its totient is φ = 13556342912.

The previous prime is 20355877001. The next prime is 20355877067. The reversal of 20355877011 is 11077855302.

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 20355877011 - 2¹⁹ = 20355352723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20355877001) 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, 3557106 + ... + 3562823.

It is an arithmetic number, because the mean of its divisors is an integer number (3396206610).

Almost surely, 2^20355877011 is an apocalyptic number.

20355877011 is a deficient number, since it is larger than the sum of its proper divisors (6813775869).

20355877011 is an equidigital number, since it uses as much as digits as its factorization.

20355877011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120885.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 20355877011 in words is "twenty billion, three hundred fifty-five million, eight hundred seventy-seven thousand, eleven".