21069160750280 has 32 divisors (see below), whose sum is σ = 47679632580600. Its totient is φ = 8378949474816.

The previous prime is 21069160750249. The next prime is 21069160750301. The reversal of 21069160750280 is 8205706196012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21060738283204 + 8422467076 = 4589198^2 + 91774^2 .

It is a super-2 number, since 2×21069160750280² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522331285 + ... + 1522345124.

Almost surely, 2^{21069160750280} is an apocalyptic number.

21069160750280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21069160750280 is an abundant number, since it is smaller than the sum of its proper divisors (26610471830320).

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

21069160750280 is a wasteful number, since it uses less digits than its factorization.

21069160750280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044676593 (or 3044676589 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 21069160750280 in words is "twenty-one trillion, sixty-nine billion, one hundred sixty million, seven hundred fifty thousand, two hundred eighty".