66550352 has 20 divisors (see below), whose sum is σ = 140663616. Its totient is φ = 30250080.

The previous prime is 66550327. The next prime is 66550399. The reversal of 66550352 is 25305566.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 188888 + ... + 189239.

Almost surely, 2^66550352 is an apocalyptic number.

It is an amenable number.

66550352 is an abundant number, since it is smaller than the sum of its proper divisors (74113264).

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

66550352 is a wasteful number, since it uses less digits than its factorization.

66550352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378146 (or 378140 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 66550352 is about 8157.8399101723. The cubic root of 66550352 is about 405.2441793280.

It can be divided in two parts, 66550 and 352, that multiplied together give a square (23425600 = 4840²).

The spelling of 66550352 in words is "sixty-six million, five hundred fifty thousand, three hundred fifty-two".