227642203551 has 16 divisors (see below), whose sum is σ = 347177115648. Its totient is φ = 129971100000.

The previous prime is 227642203513. The next prime is 227642203573. The reversal of 227642203551 is 155302246722.

It is not a de Polignac number, because 227642203551 - 2⁶ = 227642203487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227642203651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4564575 + ... + 4614176.

It is an arithmetic number, because the mean of its divisors is an integer number (21698569728).

Almost surely, 2^227642203551 is an apocalyptic number.

227642203551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

227642203551 is a deficient number, since it is larger than the sum of its proper divisors (119534912097).

227642203551 is a wasteful number, since it uses less digits than its factorization.

227642203551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179942.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 227642203551 in words is "two hundred twenty-seven billion, six hundred forty-two million, two hundred three thousand, five hundred fifty-one".