20554226370 has 24 divisors (see below), whose sum is σ = 53440988796. Its totient is φ = 5481127008.

The previous prime is 20554226359. The next prime is 20554226387. The reversal of 20554226370 is 7362245502.

20554226370 is a `hidden beast` number, since 20 + 5 + 542 + 26 + 3 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20538615969 + 15610401 = 143313^2 + 3951^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114190057 + ... + 114190236.

Almost surely, 2^20554226370 is an apocalyptic number.

20554226370 is an abundant number, since it is smaller than the sum of its proper divisors (32886762426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20554226370 is a wasteful number, since it uses less digits than its factorization.

20554226370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228380306 (or 228380303 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 20554226370 in words is "twenty billion, five hundred fifty-four million, two hundred twenty-six thousand, three hundred seventy".