20612116567 has 8 divisors (see below), whose sum is σ = 23595905312. Its totient is φ = 17638128000.

The previous prime is 20612116561. The next prime is 20612116573. The reversal of 20612116567 is 76561121602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20612116561) and next prime (20612116573).

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 20612116567 - 2⁷ = 20612116439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20612116561) 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, 2445534 + ... + 2453947.

It is an arithmetic number, because the mean of its divisors is an integer number (2949488164).

Almost surely, 2^20612116567 is an apocalyptic number.

20612116567 is a deficient number, since it is larger than the sum of its proper divisors (2983788745).

20612116567 is an equidigital number, since it uses as much as digits as its factorization.

20612116567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900089.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 20612116567 in words is "twenty billion, six hundred twelve million, one hundred sixteen thousand, five hundred sixty-seven".