20120475321667 has 8 divisors (see below), whose sum is σ = 23009466016512. Its totient is φ = 17235143896200.

The previous prime is 20120475321613. The next prime is 20120475321721. The reversal of 20120475321667 is 76612357402102.

It is an interprime number because it is at equal distance from previous prime (20120475321613) and next prime (20120475321721).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120475321667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120475321367) 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, 914805559 + ... + 914827552.

It is an arithmetic number, because the mean of its divisors is an integer number (2876183252064).

Almost surely, 2^{20120475321667} is an apocalyptic number.

20120475321667 is a deficient number, since it is larger than the sum of its proper divisors (2888990694845).

20120475321667 is a wasteful number, since it uses less digits than its factorization.

20120475321667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829634689.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 20120475321667 in words is "twenty trillion, one hundred twenty billion, four hundred seventy-five million, three hundred twenty-one thousand, six hundred sixty-seven".