60643561 has 8 divisors (see below), whose sum is σ = 66223584. Its totient is φ = 55074720.

The previous prime is 60643559. The next prime is 60643579. The reversal of 60643561 is 16534606.

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 60643561 - 2¹ = 60643559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60643511) 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, 11965 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (8277948).

Almost surely, 2^60643561 is an apocalyptic number.

It is an amenable number.

60643561 is a deficient number, since it is larger than the sum of its proper divisors (5580023).

60643561 is a wasteful number, since it uses less digits than its factorization.

60643561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 60643561 is about 7787.3975755704. The cubic root of 60643561 is about 392.8814871841.

The spelling of 60643561 in words is "sixty million, six hundred forty-three thousand, five hundred sixty-one".