20376224217 has 8 divisors (see below), whose sum is σ = 30186998880. Its totient is φ = 13584149460.

The previous prime is 20376224203. The next prime is 20376224237. The reversal of 20376224217 is 71242267302.

It is a happy number.

20376224217 is a `hidden beast` number, since 2 + 0 + 3 + 7 + 622 + 4 + 21 + 7 = 666.

It is not a de Polignac number, because 20376224217 - 2⁴ = 20376224201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20376224237) 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, 377337459 + ... + 377337512.

It is an arithmetic number, because the mean of its divisors is an integer number (3773374860).

Almost surely, 2^20376224217 is an apocalyptic number.

20376224217 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20376224217 is a deficient number, since it is larger than the sum of its proper divisors (9810774663).

20376224217 is an equidigital number, since it uses as much as digits as its factorization.

20376224217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754674980 (or 754674974 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 20376224217 in words is "twenty billion, three hundred seventy-six million, two hundred twenty-four thousand, two hundred seventeen".