66151342 has 4 divisors (see below), whose sum is σ = 99227016. Its totient is φ = 33075670.

The previous prime is 66151333. The next prime is 66151357. The reversal of 66151342 is 24315166.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66151342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16537834 + ... + 16537837.

It is an arithmetic number, because the mean of its divisors is an integer number (24806754).

Almost surely, 2^66151342 is an apocalyptic number.

66151342 is a deficient number, since it is larger than the sum of its proper divisors (33075674).

66151342 is a wasteful number, since it uses less digits than its factorization.

66151342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33075673.

The product of its digits is 4320, while the sum is 28.

The square root of 66151342 is about 8133.3475273100. The cubic root of 66151342 is about 404.4326598683.

It can be divided in two parts, 661 and 51342, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 66151342 in words is "sixty-six million, one hundred fifty-one thousand, three hundred forty-two".