546497661 has 4 divisors (see below), whose sum is σ = 728663552. Its totient is φ = 364331772.

The previous prime is 546497629. The next prime is 546497671. The reversal of 546497661 is 166794645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 546497661 - 2⁵ = 546497629 is a prime.

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 546497661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546497671) 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, 91082941 + ... + 91082946.

It is an arithmetic number, because the mean of its divisors is an integer number (182165888).

Almost surely, 2^546497661 is an apocalyptic number.

It is an amenable number.

546497661 is a deficient number, since it is larger than the sum of its proper divisors (182165891).

546497661 is a wasteful number, since it uses less digits than its factorization.

546497661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182165890.

The product of its digits is 1088640, while the sum is 48.

The square root of 546497661 is about 23377.2894279897. The cubic root of 546497661 is about 817.5784503266.

The spelling of 546497661 in words is "five hundred forty-six million, four hundred ninety-seven thousand, six hundred sixty-one".