466689661 has 16 divisors (see below), whose sum is σ = 504693504. Its totient is φ = 429958144.

The previous prime is 466689659. The next prime is 466689667. The reversal of 466689661 is 166986664.

It is a cyclic number.

It is not a de Polignac number, because 466689661 - 2¹ = 466689659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 466689599 and 466689608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (466689667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157980 + ... + 160906.

It is an arithmetic number, because the mean of its divisors is an integer number (31543344).

Almost surely, 2^466689661 is an apocalyptic number.

It is an amenable number.

466689661 is a deficient number, since it is larger than the sum of its proper divisors (38003843).

466689661 is a wasteful number, since it uses less digits than its factorization.

466689661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140.

The product of its digits is 2239488, while the sum is 52.

The square root of 466689661 is about 21603.0012035365. The cubic root of 466689661 is about 775.6683300480.

Subtracting from 466689661 its sum of digits (52), we obtain a square (466689609 = 21603²).

The spelling of 466689661 in words is "four hundred sixty-six million, six hundred eighty-nine thousand, six hundred sixty-one".