4051661145 has 32 divisors (see below), whose sum is σ = 7411772160. Its totient is φ = 1851432960.

The previous prime is 4051661129. The next prime is 4051661149. The reversal of 4051661145 is 5411661504.

It is not a de Polignac number, because 4051661145 - 2⁴ = 4051661129 is a prime.

It is a super-2 number, since 2×4051661145² = 32831916067805422050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4051661149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312961 + ... + 325649.

It is an arithmetic number, because the mean of its divisors is an integer number (231617880).

Almost surely, 2^4051661145 is an apocalyptic number.

It is an amenable number.

4051661145 is a deficient number, since it is larger than the sum of its proper divisors (3360111015).

4051661145 is a wasteful number, since it uses less digits than its factorization.

4051661145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15745.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 4051661145 is about 63652.6601565088. The cubic root of 4051661145 is about 1594.2057536112.

The spelling of 4051661145 in words is "four billion, fifty-one million, six hundred sixty-one thousand, one hundred forty-five".