66020160 has 56 divisors (see below), whose sum is σ = 209617056. Its totient is φ = 17605120.

The previous prime is 66020159. The next prime is 66020161. The reversal of 66020160 is 6102066.

It is an interprime number because it is at equal distance from previous prime (66020159) and next prime (66020161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66020161) 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, 33426 + ... + 35345.

Almost surely, 2^66020160 is an apocalyptic number.

66020160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66020160 is an abundant number, since it is smaller than the sum of its proper divisors (143596896).

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

66020160 is a wasteful number, since it uses less digits than its factorization.

66020160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68791 (or 68781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 66020160 is about 8125.2790721304. The cubic root of 66020160 is about 404.1651450445.

The spelling of 66020160 in words is "sixty-six million, twenty thousand, one hundred sixty".