66260901 has 8 divisors (see below), whose sum is σ = 100969024. Its totient is φ = 37863360.

The previous prime is 66260899. The next prime is 66260933. The reversal of 66260901 is 10906266.

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

It is not a de Polignac number, because 66260901 - 2¹ = 66260899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66260501) 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, 1577620 + ... + 1577661.

It is an arithmetic number, because the mean of its divisors is an integer number (12621128).

Almost surely, 2^66260901 is an apocalyptic number.

It is an amenable number.

66260901 is a deficient number, since it is larger than the sum of its proper divisors (34708123).

66260901 is a wasteful number, since it uses less digits than its factorization.

66260901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155291.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 66260901 is about 8140.0799136126. The cubic root of 66260901 is about 404.6558087744.

It can be divided in two parts, 66260 and 901, that added together give a triangular number (67161 = T₃₆₆).

The spelling of 66260901 in words is "sixty-six million, two hundred sixty thousand, nine hundred one".