66962142 has 24 divisors (see below), whose sum is σ = 156245544. Its totient is φ = 20603664.

The previous prime is 66962141. The next prime is 66962149. The reversal of 66962142 is 24126966.

It is a super-2 number, since 2×66962142² = 8967856922456328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66962097 and 66962106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66962141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142848 + ... + 143315.

It is an arithmetic number, because the mean of its divisors is an integer number (6510231).

Almost surely, 2^66962142 is an apocalyptic number.

66962142 is an abundant number, since it is smaller than the sum of its proper divisors (89283402).

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

66962142 is a wasteful number, since it uses less digits than its factorization.

66962142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286184 (or 286181 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 66962142 is about 8183.0398996950. The cubic root of 66962142 is about 406.0782970804.

The spelling of 66962142 in words is "sixty-six million, nine hundred sixty-two thousand, one hundred forty-two".