66552060 has 48 divisors (see below), whose sum is σ = 196156800. Its totient is φ = 16812864.

The previous prime is 66552043. The next prime is 66552067. The reversal of 66552060 is 6025566.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66552067) 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, 28050 + ... + 30329.

It is an arithmetic number, because the mean of its divisors is an integer number (4086600).

Almost surely, 2^66552060 is an apocalyptic number.

66552060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66552060 is an abundant number, since it is smaller than the sum of its proper divisors (129604740).

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

66552060 is a wasteful number, since it uses less digits than its factorization.

66552060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58410 (or 58408 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 66552060 is about 8157.9445940752. The cubic root of 66552060 is about 405.2476461323.

It can be divided in two parts, 665 and 52060, that added together give a palindrome (52725).

The spelling of 66552060 in words is "sixty-six million, five hundred fifty-two thousand, sixty".