20477664313 has 8 divisors (see below), whose sum is σ = 22624939008. Its totient is φ = 18435134784.

The previous prime is 20477664287. The next prime is 20477664329. The reversal of 20477664313 is 31346677402.

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

It is a cyclic number.

It is not a de Polignac number, because 20477664313 - 2⁵ = 20477664281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20477664313.

It is not an unprimeable number, because it can be changed into a prime (20477664343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26185881 + ... + 26186662.

It is an arithmetic number, because the mean of its divisors is an integer number (2828117376).

Almost surely, 2^20477664313 is an apocalyptic number.

20477664313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20477664313 is a deficient number, since it is larger than the sum of its proper divisors (2147274695).

20477664313 is a wasteful number, since it uses less digits than its factorization.

20477664313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52372583.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 20477664313 in words is "twenty billion, four hundred seventy-seven million, six hundred sixty-four thousand, three hundred thirteen".