4261555166 has 32 divisors (see below), whose sum is σ = 7051449600. Its totient is φ = 1915462080.

The previous prime is 4261555141. The next prime is 4261555229. The reversal of 4261555166 is 6615551624.

It is a super-2 number, since 2×4261555166² = 36321704865722575112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2920145 + ... + 2921603.

It is an arithmetic number, because the mean of its divisors is an integer number (220357800).

Almost surely, 2^4261555166 is an apocalyptic number.

4261555166 is a deficient number, since it is larger than the sum of its proper divisors (2789894434).

4261555166 is a wasteful number, since it uses less digits than its factorization.

4261555166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its digits is 216000, while the sum is 41.

The square root of 4261555166 is about 65280.5879722295. The cubic root of 4261555166 is about 1621.2725820935.

The spelling of 4261555166 in words is "four billion, two hundred sixty-one million, five hundred fifty-five thousand, one hundred sixty-six".