66101061 has 32 divisors (see below), whose sum is σ = 98840448. Its totient is φ = 39029760.

The previous prime is 66101059. The next prime is 66101107. The reversal of 66101061 is 16010166.

It is not a de Polignac number, because 66101061 - 2¹ = 66101059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66101041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106825 + ... + 107441.

It is an arithmetic number, because the mean of its divisors is an integer number (3088764).

Almost surely, 2^66101061 is an apocalyptic number.

It is an amenable number.

66101061 is a deficient number, since it is larger than the sum of its proper divisors (32739387).

66101061 is a wasteful number, since it uses less digits than its factorization.

66101061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 66101061 is about 8130.2559000317. The cubic root of 66101061 is about 404.3301654348.

The spelling of 66101061 in words is "sixty-six million, one hundred one thousand, sixty-one".