21999830558 has 8 divisors (see below), whose sum is σ = 33291779328. Its totient is φ = 10902570784.

The previous prime is 21999830557. The next prime is 21999830617. The reversal of 21999830558 is 85503899912.

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

It is a super-3 number, since 3×21999830558³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21999830497 and 21999830506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21999830557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48671966 + ... + 48672417.

It is an arithmetic number, because the mean of its divisors is an integer number (4161472416).

Almost surely, 2^21999830558 is an apocalyptic number.

21999830558 is a deficient number, since it is larger than the sum of its proper divisors (11291948770).

21999830558 is a wasteful number, since it uses less digits than its factorization.

21999830558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97344498.

The product of its (nonzero) digits is 6998400, while the sum is 59.

The spelling of 21999830558 in words is "twenty-one billion, nine hundred ninety-nine million, eight hundred thirty thousand, five hundred fifty-eight".