21232546610 has 32 divisors (see below), whose sum is σ = 44145533952. Its totient is φ = 7266753280.

The previous prime is 21232546609. The next prime is 21232546639. The reversal of 21232546610 is 1664523212.

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 in 15 ways as a sum of consecutive naturals, for example, 5675282 + ... + 5679021.

It is an arithmetic number, because the mean of its divisors is an integer number (1379547936).

Almost surely, 2^21232546610 is an apocalyptic number.

21232546610 is an abundant number, since it is smaller than the sum of its proper divisors (22912987342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232546610 is a wasteful number, since it uses less digits than its factorization.

21232546610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11354338.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 21232546610 in words is "twenty-one billion, two hundred thirty-two million, five hundred forty-six thousand, six hundred ten".