20067615677 has 8 divisors (see below), whose sum is σ = 21311120376. Its totient is φ = 18831117312.

The previous prime is 20067615587. The next prime is 20067615679. The reversal of 20067615677 is 77651676002.

It can be written as a sum of positive squares in 4 ways, for example, as 5337909721 + 14729705956 = 73061^2 + 121366^2 .

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 20067615677 - 2¹⁰ = 20067614653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20067615679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745678 + ... + 1757135.

It is an arithmetic number, because the mean of its divisors is an integer number (2663890047).

Almost surely, 2^20067615677 is an apocalyptic number.

It is an amenable number.

20067615677 is a deficient number, since it is larger than the sum of its proper divisors (1243504699).

20067615677 is a wasteful number, since it uses less digits than its factorization.

20067615677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503167.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 20067615677 in words is "twenty billion, sixty-seven million, six hundred fifteen thousand, six hundred seventy-seven".