21532080207 has 16 divisors (see below), whose sum is σ = 31337970048. Its totient is φ = 13042003680.

The previous prime is 21532080203. The next prime is 21532080211. The reversal of 21532080207 is 70208023512.

It is an interprime number because it is at equal distance from previous prime (21532080203) and next prime (21532080211).

It is not a de Polignac number, because 21532080207 - 2² = 21532080203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21532080203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136833 + ... + 248570.

It is an arithmetic number, because the mean of its divisors is an integer number (1958623128).

Almost surely, 2^21532080207 is an apocalyptic number.

21532080207 is a deficient number, since it is larger than the sum of its proper divisors (9805889841).

21532080207 is a wasteful number, since it uses less digits than its factorization.

21532080207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387110.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 21532080207 in words is "twenty-one billion, five hundred thirty-two million, eighty thousand, two hundred seven".