66426132 has 12 divisors (see below), whose sum is σ = 154994336. Its totient is φ = 22142040.

The previous prime is 66426127. The next prime is 66426167. The reversal of 66426132 is 23162466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66426132.

It is a congruent number.

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, 2767744 + ... + 2767767.

Almost surely, 2^66426132 is an apocalyptic number.

It is an amenable number.

66426132 is an abundant number, since it is smaller than the sum of its proper divisors (88568204).

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

66426132 is a wasteful number, since it uses less digits than its factorization.

66426132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535518 (or 5535516 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 66426132 is about 8150.2228190400. Note that the first 3 decimals coincide. The cubic root of 66426132 is about 404.9918852207.

Adding to 66426132 its reverse (23162466), we get a palindrome (89588598).

It can be divided in two parts, 664 and 26132, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 66426132 in words is "sixty-six million, four hundred twenty-six thousand, one hundred thirty-two".