4415906661 has 8 divisors (see below), whose sum is σ = 5890788384. Its totient is φ = 2942481360.

The previous prime is 4415906639. The next prime is 4415906669. The reversal of 4415906661 is 1666095144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4415906661 - 2¹⁴ = 4415890277 is a prime.

It is a super-3 number, since 3×4415906661³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4415906669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357010 + ... + 369171.

It is an arithmetic number, because the mean of its divisors is an integer number (736348548).

Almost surely, 2^4415906661 is an apocalyptic number.

It is an amenable number.

4415906661 is a deficient number, since it is larger than the sum of its proper divisors (1474881723).

4415906661 is a wasteful number, since it uses less digits than its factorization.

4415906661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728211.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 4415906661 is about 66452.2886061872. The cubic root of 4415906661 is about 1640.6148127396.

The spelling of 4415906661 in words is "four billion, four hundred fifteen million, nine hundred six thousand, six hundred sixty-one".