20797585466 has 8 divisors (see below), whose sum is σ = 35653003680. Its totient is φ = 8913250908.

The previous prime is 20797585453. The next prime is 20797585483. The reversal of 20797585466 is 66458579702.

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

It is a super-2 number, since 2×20797585466² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 742770896 + ... + 742770923.

It is an arithmetic number, because the mean of its divisors is an integer number (4456625460).

Almost surely, 2^20797585466 is an apocalyptic number.

20797585466 is a deficient number, since it is larger than the sum of its proper divisors (14855418214).

20797585466 is a wasteful number, since it uses less digits than its factorization.

20797585466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485541828.

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 20797585466 in words is "twenty billion, seven hundred ninety-seven million, five hundred eighty-five thousand, four hundred sixty-six".