66161484 has 36 divisors (see below), whose sum is σ = 177080904. Its totient is φ = 20756352.

The previous prime is 66161483. The next prime is 66161503. The reversal of 66161484 is 48416166.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66161483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53442 + ... + 54665.

It is an arithmetic number, because the mean of its divisors is an integer number (4918914).

Almost surely, 2^66161484 is an apocalyptic number.

It is an amenable number.

66161484 is an abundant number, since it is smaller than the sum of its proper divisors (110919420).

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

66161484 is a wasteful number, since it uses less digits than its factorization.

66161484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108134 (or 108129 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 66161484 is about 8133.9709859330. The cubic root of 66161484 is about 404.4533273575.

It can be divided in two parts, 6616 and 1484, that added together give a square (8100 = 90²).

The spelling of 66161484 in words is "sixty-six million, one hundred sixty-one thousand, four hundred eighty-four".