20265551006 has 8 divisors (see below), whose sum is σ = 30416118840. Its totient is φ = 10126844728.

The previous prime is 20265551003. The next prime is 20265551023. The reversal of 20265551006 is 60015556202.

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

It is a super-2 number, since 2×20265551006² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265551003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961116 + ... + 2967951.

It is an arithmetic number, because the mean of its divisors is an integer number (3802014855).

Almost surely, 2^20265551006 is an apocalyptic number.

20265551006 is a deficient number, since it is larger than the sum of its proper divisors (10150567834).

20265551006 is a wasteful number, since it uses less digits than its factorization.

20265551006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930778.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 20265551006 in words is "twenty billion, two hundred sixty-five million, five hundred fifty-one thousand, six".