20372336555777 has 8 divisors (see below), whose sum is σ = 21139719036480. Its totient is φ = 19618299857520.

The previous prime is 20372336555749. The next prime is 20372336555783. The reversal of 20372336555777 is 77755563327302.

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 20372336555777 - 2¹⁸ = 20372336293633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20372336555377) 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, 3336442502 + ... + 3336448607.

It is an arithmetic number, because the mean of its divisors is an integer number (2642464879560).

Almost surely, 2^{20372336555777} is an apocalyptic number.

It is an amenable number.

20372336555777 is a deficient number, since it is larger than the sum of its proper divisors (767382480703).

20372336555777 is an equidigital number, since it uses as much as digits as its factorization.

20372336555777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672891223.

The product of its (nonzero) digits is 194481000, while the sum is 62.

The spelling of 20372336555777 in words is "twenty trillion, three hundred seventy-two billion, three hundred thirty-six million, five hundred fifty-five thousand, seven hundred seventy-seven".