66162744 has 40 divisors (see below), whose sum is σ = 185318760. Its totient is φ = 22054032.

The previous prime is 66162739. The next prime is 66162791. The reversal of 66162744 is 44726166.

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

It is a junction number, because it is equal to n+sod(n) for n = 66162699 and 66162708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50404 + ... + 51699.

It is an arithmetic number, because the mean of its divisors is an integer number (4632969).

Almost surely, 2^66162744 is an apocalyptic number.

It is an amenable number.

66162744 is an abundant number, since it is smaller than the sum of its proper divisors (119156016).

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

66162744 is a wasteful number, since it uses less digits than its factorization.

66162744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102121 (or 102108 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 66162744 is about 8134.0484385083. The cubic root of 66162744 is about 404.4558948531.

The spelling of 66162744 in words is "sixty-six million, one hundred sixty-two thousand, seven hundred forty-four".