66922488 has 48 divisors (see below), whose sum is σ = 187504200. Its totient is φ = 21537600.

The previous prime is 66922487. The next prime is 66922511. The reversal of 66922488 is 88422966.

It is a super-2 number, since 2×66922488² = 8957238800220288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66922487) 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, 13938 + ... + 18113.

Almost surely, 2^66922488 is an apocalyptic number.

It is an amenable number.

66922488 is an abundant number, since it is smaller than the sum of its proper divisors (120581712).

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

66922488 is a wasteful number, since it uses less digits than its factorization.

66922488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32092 (or 32085 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 66922488 is about 8180.6166026773. The cubic root of 66922488 is about 405.9981233786.

It can be divided in two parts, 6692 and 2488, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 66922488 in words is "sixty-six million, nine hundred twenty-two thousand, four hundred eighty-eight".