66773132 has 24 divisors (see below), whose sum is σ = 122680320. Its totient is φ = 31758480.

The previous prime is 66773131. The next prime is 66773137. The reversal of 66773132 is 23137766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66773092 and 66773101.

It is not an unprimeable number, because it can be changed into a prime (66773131) 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, 2753 + ... + 11879.

It is an arithmetic number, because the mean of its divisors is an integer number (5111680).

Almost surely, 2^66773132 is an apocalyptic number.

66773132 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66773132 is a deficient number, since it is larger than the sum of its proper divisors (55907188).

66773132 is a wasteful number, since it uses less digits than its factorization.

66773132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221 (or 9219 counting only the distinct ones).

The product of its digits is 31752, while the sum is 35.

The square root of 66773132 is about 8171.4828519676. The cubic root of 66773132 is about 405.6958661261.

The spelling of 66773132 in words is "sixty-six million, seven hundred seventy-three thousand, one hundred thirty-two".