21011550062 has 4 divisors (see below), whose sum is σ = 31517325096. Its totient is φ = 10505775030.

The previous prime is 21011550037. The next prime is 21011550097. The reversal of 21011550062 is 26005511012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252887514 + ... + 5252887517.

It is an arithmetic number, because the mean of its divisors is an integer number (7879331274).

Almost surely, 2^21011550062 is an apocalyptic number.

21011550062 is a deficient number, since it is larger than the sum of its proper divisors (10505775034).

21011550062 is a wasteful number, since it uses less digits than its factorization.

21011550062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505775033.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 21011550062 in words is "twenty-one billion, eleven million, five hundred fifty thousand, sixty-two".