1658227641 has 32 divisors (see below), whose sum is σ = 2662732800. Its totient is φ = 896702400.

The previous prime is 1658227621. The next prime is 1658227661. The reversal of 1658227641 is 1467228561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1658227621) and next prime (1658227661).

It is not a de Polignac number, because 1658227641 - 2⁶ = 1658227577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1658227593 and 1658227602.

It is not an unprimeable number, because it can be changed into a prime (1658227601) 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 31 ways as a sum of consecutive naturals, for example, 500691 + ... + 503991.

It is an arithmetic number, because the mean of its divisors is an integer number (83210400).

Almost surely, 2^1658227641 is an apocalyptic number.

It is an amenable number.

1658227641 is a deficient number, since it is larger than the sum of its proper divisors (1004505159).

1658227641 is a wasteful number, since it uses less digits than its factorization.

1658227641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589.

The product of its digits is 161280, while the sum is 42.

The square root of 1658227641 is about 40721.3413457858. The cubic root of 1658227641 is about 1183.6266002133.

The spelling of 1658227641 in words is "one billion, six hundred fifty-eight million, two hundred twenty-seven thousand, six hundred forty-one".