46581661 has 8 divisors (see below), whose sum is σ = 53348544. Its totient is φ = 39842880.

The previous prime is 46581643. The next prime is 46581671. The reversal of 46581661 is 16618564.

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

It is not a de Polignac number, because 46581661 - 2⁵ = 46581629 is a prime.

It is a super-2 number, since 2×46581661² = 4339702283037842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46581661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46581641) 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, 3340 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (6668568).

Almost surely, 2^46581661 is an apocalyptic number.

It is an amenable number.

46581661 is a deficient number, since it is larger than the sum of its proper divisors (6766883).

46581661 is a wasteful number, since it uses less digits than its factorization.

46581661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051.

The product of its digits is 34560, while the sum is 37.

The square root of 46581661 is about 6825.0758970139. The cubic root of 46581661 is about 359.8086972287.

The spelling of 46581661 in words is "forty-six million, five hundred eighty-one thousand, six hundred sixty-one".