20631466718 has 8 divisors (see below), whose sum is σ = 31004405400. Its totient is φ = 10296664920.

The previous prime is 20631466717. The next prime is 20631466741. The reversal of 20631466718 is 81766413602.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20631466717) 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, 9532868 + ... + 9535031.

It is an arithmetic number, because the mean of its divisors is an integer number (3875550675).

Almost surely, 2^20631466718 is an apocalyptic number.

20631466718 is a deficient number, since it is larger than the sum of its proper divisors (10372938682).

20631466718 is a wasteful number, since it uses less digits than its factorization.

20631466718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19068442.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 20631466718 in words is "twenty billion, six hundred thirty-one million, four hundred sixty-six thousand, seven hundred eighteen".