66245088 has 96 divisors (see below), whose sum is σ = 214050816. Its totient is φ = 17468928.

The previous prime is 66245087. The next prime is 66245089. The reversal of 66245088 is 88054266.

It is an interprime number because it is at equal distance from previous prime (66245087) and next prime (66245089).

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66245087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4945 + ... + 12527.

It is an arithmetic number, because the mean of its divisors is an integer number (2229696).

Almost surely, 2^66245088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66245088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107025408).

66245088 is an abundant number, since it is smaller than the sum of its proper divisors (147805728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66245088 is a wasteful number, since it uses less digits than its factorization.

66245088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616 (or 7608 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 66245088 is about 8139.1085506952. The cubic root of 66245088 is about 404.6236161776.

The spelling of 66245088 in words is "sixty-six million, two hundred forty-five thousand, eighty-eight".