661046466 has 16 divisors (see below), whose sum is σ = 1322748000. Its totient is φ = 220239648.

The previous prime is 661046453. The next prime is 661046467. The reversal of 661046466 is 664640166.

It is a super-2 number, since 2×661046466² = 873964860422178312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (661046467) 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, 13651 + ... + 38838.

It is an arithmetic number, because the mean of its divisors is an integer number (82671750).

Almost surely, 2^661046466 is an apocalyptic number.

661046466 is an abundant number, since it is smaller than the sum of its proper divisors (661701534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

661046466 is a wasteful number, since it uses less digits than its factorization.

661046466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54593.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 661046466 is about 25710.8239074519. The cubic root of 661046466 is about 871.1186851186.

The spelling of 661046466 in words is "six hundred sixty-one million, forty-six thousand, four hundred sixty-six".