21701365477011 has 96 divisors (see below), whose sum is σ = 36046124974080. Its totient is φ = 12442738795200.

The previous prime is 21701365476911. The next prime is 21701365477031. The reversal of 21701365477011 is 11077456310712.

21701365477011 is a `hidden beast` number, since 2 + 1 + 7 + 0 + 1 + 36 + 547 + 70 + 1 + 1 = 666.

It is not a de Polignac number, because 21701365477011 - 2²³ = 21701357088403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21701365477031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7324117816 + ... + 7324120778.

It is an arithmetic number, because the mean of its divisors is an integer number (375480468480).

Almost surely, 2^{21701365477011} is an apocalyptic number.

21701365477011 is a deficient number, since it is larger than the sum of its proper divisors (14344759497069).

21701365477011 is a wasteful number, since it uses less digits than its factorization.

21701365477011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117 (or 7114 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The spelling of 21701365477011 in words is "twenty-one trillion, seven hundred one billion, three hundred sixty-five million, four hundred seventy-seven thousand, eleven".