66288472032 has 48 divisors (see below), whose sum is σ = 174020897232. Its totient is φ = 22094423040.

The previous prime is 66288472027. The next prime is 66288472037. The reversal of 66288472032 is 23027488266.

It is an interprime number because it is at equal distance from previous prime (66288472027) and next prime (66288472037).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66288472037) 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, 1948932 + ... + 1982652.

It is an arithmetic number, because the mean of its divisors is an integer number (3625435359).

Almost surely, 2^66288472032 is an apocalyptic number.

It is an amenable number.

66288472032 is an abundant number, since it is smaller than the sum of its proper divisors (107732425200).

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

66288472032 is a wasteful number, since it uses less digits than its factorization.

66288472032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54211 (or 54203 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 66288472032 in words is "sixty-six billion, two hundred eighty-eight million, four hundred seventy-two thousand, thirty-two".