61416641 has 8 divisors (see below), whose sum is σ = 72153984. Its totient is φ = 51538320.

The previous prime is 61416637. The next prime is 61416659. The reversal of 61416641 is 14661416.

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

It is a cyclic number.

It is not a de Polignac number, because 61416641 - 2² = 61416637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61416661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214601 + ... + 214886.

It is an arithmetic number, because the mean of its divisors is an integer number (9019248).

Almost surely, 2^61416641 is an apocalyptic number.

It is an amenable number.

61416641 is a deficient number, since it is larger than the sum of its proper divisors (10737343).

61416641 is a wasteful number, since it uses less digits than its factorization.

61416641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429511.

The product of its digits is 3456, while the sum is 29.

The square root of 61416641 is about 7836.8769927823. The cubic root of 61416641 is about 394.5439183945.

The spelling of 61416641 in words is "sixty-one million, four hundred sixteen thousand, six hundred forty-one".