66426632 has 16 divisors (see below), whose sum is σ = 124756800. Its totient is φ = 33158160.

The previous prime is 66426629. The next prime is 66426653. The reversal of 66426632 is 23662466.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66426592 and 66426601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532 + ... + 11627.

It is an arithmetic number, because the mean of its divisors is an integer number (7797300).

Almost surely, 2^66426632 is an apocalyptic number.

It is an amenable number.

66426632 is a deficient number, since it is larger than the sum of its proper divisors (58330168).

66426632 is a wasteful number, since it uses less digits than its factorization.

66426632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796 (or 13792 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 66426632 is about 8150.2534929903. The cubic root of 66426632 is about 404.9929013642.

The spelling of 66426632 in words is "sixty-six million, four hundred twenty-six thousand, six hundred thirty-two".