4664154661 has 4 divisors (see below), whose sum is σ = 4665981292. Its totient is φ = 4662328032.

The previous prime is 4664154647. The next prime is 4664154667. The reversal of 4664154661 is 1664514664.

It is a happy number.

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 1004509636 + 3659645025 = 31694^2 + 60495^2 .

It is a cyclic number.

It is not a de Polignac number, because 4664154661 - 2⁷ = 4664154533 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 (4664154667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909480 + ... + 914593.

It is an arithmetic number, because the mean of its divisors is an integer number (1166495323).

Almost surely, 2^4664154661 is an apocalyptic number.

It is an amenable number.

4664154661 is a deficient number, since it is larger than the sum of its proper divisors (1826631).

4664154661 is a wasteful number, since it uses less digits than its factorization.

4664154661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826630.

The product of its digits is 414720, while the sum is 43.

The square root of 4664154661 is about 68294.6166326454. The cubic root of 4664154661 is about 1670.7994141995.

The spelling of 4664154661 in words is "four billion, six hundred sixty-four million, one hundred fifty-four thousand, six hundred sixty-one".