4061221544 has 16 divisors (see below), whose sum is σ = 7800517620. Its totient is φ = 1981083520.

The previous prime is 4061221531. The next prime is 4061221553. The reversal of 4061221544 is 4451221604.

It can be written as a sum of positive squares in 2 ways, for example, as 3263836900 + 797384644 = 57130^2 + 28238^2 .

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 3 ways as a sum of consecutive naturals, for example, 6190559 + ... + 6191214.

Almost surely, 2^4061221544 is an apocalyptic number.

It is an amenable number.

4061221544 is a deficient number, since it is larger than the sum of its proper divisors (3739296076).

4061221544 is a wasteful number, since it uses less digits than its factorization.

4061221544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381820 (or 12381816 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 4061221544 is about 63727.7140967727. The cubic root of 4061221544 is about 1595.4586776480.

The spelling of 4061221544 in words is "four billion, sixty-one million, two hundred twenty-one thousand, five hundred forty-four".