66051342 has 64 divisors (see below), whose sum is σ = 168791040. Its totient is φ = 18754848.

The previous prime is 66051329. The next prime is 66051361. The reversal of 66051342 is 24315066.

66051342 is a `hidden beast` number, since 6 + 605 + 13 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74023 + ... + 74909.

It is an arithmetic number, because the mean of its divisors is an integer number (2637360).

Almost surely, 2^66051342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66051342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84395520).

66051342 is an abundant number, since it is smaller than the sum of its proper divisors (102739698).

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

66051342 is a wasteful number, since it uses less digits than its factorization.

66051342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 66051342 is about 8127.1976720146. The cubic root of 66051342 is about 404.2287654798.

The spelling of 66051342 in words is "sixty-six million, fifty-one thousand, three hundred forty-two".