4034356661 has 4 divisors (see below), whose sum is σ = 4110476652. Its totient is φ = 3958236672.

The previous prime is 4034356619. The next prime is 4034356673. The reversal of 4034356661 is 1666534304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3298319761 + 736036900 = 57431^2 + 27130^2 .

It is a cyclic number.

It is not a de Polignac number, because 4034356661 - 2⁶ = 4034356597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4034316661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38059916 + ... + 38060021.

It is an arithmetic number, because the mean of its divisors is an integer number (1027619163).

Almost surely, 2^4034356661 is an apocalyptic number.

It is an amenable number.

4034356661 is a deficient number, since it is larger than the sum of its proper divisors (76119991).

4034356661 is an equidigital number, since it uses as much as digits as its factorization.

4034356661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76119990.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 4034356661 is about 63516.5857158585. The cubic root of 4034356661 is about 1591.9329182960.

The spelling of 4034356661 in words is "four billion, thirty-four million, three hundred fifty-six thousand, six hundred sixty-one".