64546461 has 12 divisors (see below), whose sum is σ = 106552992. Its totient is φ = 36883656.

The previous prime is 64546453. The next prime is 64546499. The reversal of 64546461 is 16464546.

64546461 is a `hidden beast` number, since 6 + 4 + 5 + 4 + 646 + 1 = 666.

It is not a de Polignac number, because 64546461 - 2³ = 64546453 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64546561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512211 + ... + 512336.

It is an arithmetic number, because the mean of its divisors is an integer number (8879416).

Almost surely, 2^64546461 is an apocalyptic number.

It is an amenable number.

64546461 is a deficient number, since it is larger than the sum of its proper divisors (42006531).

64546461 is a wasteful number, since it uses less digits than its factorization.

64546461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024560 (or 1024557 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 64546461 is about 8034.0812169158. The cubic root of 64546461 is about 401.1352354697.

The spelling of 64546461 in words is "sixty-four million, five hundred forty-six thousand, four hundred sixty-one".