20648498635 has 8 divisors (see below), whose sum is σ = 24825760416. Its totient is φ = 16487090880.

The previous prime is 20648498557. The next prime is 20648498641. The reversal of 20648498635 is 53689484602.

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

It is not a de Polignac number, because 20648498635 - 2³³ = 12058564043 is a prime.

It is a super-3 number, since 3×20648498635³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960639 + ... + 3965848.

It is an arithmetic number, because the mean of its divisors is an integer number (3103220052).

Almost surely, 2^20648498635 is an apocalyptic number.

20648498635 is a deficient number, since it is larger than the sum of its proper divisors (4177261781).

20648498635 is an equidigital number, since it uses as much as digits as its factorization.

20648498635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927013.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 20648498635 in words is "twenty billion, six hundred forty-eight million, four hundred ninety-eight thousand, six hundred thirty-five".