66406962 has 16 divisors (see below), whose sum is σ = 136053792. Its totient is φ = 21595680.

The previous prime is 66406961. The next prime is 66406969. The reversal of 66406962 is 26960466.

It is a self number, because there is not a number n which added to its sum of digits gives 66406962.

It is not an unprimeable number, because it can be changed into a prime (66406961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134728 + ... + 135219.

It is an arithmetic number, because the mean of its divisors is an integer number (8503362).

Almost surely, 2^66406962 is an apocalyptic number.

66406962 is an abundant number, since it is smaller than the sum of its proper divisors (69646830).

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

66406962 is a wasteful number, since it uses less digits than its factorization.

66406962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269993.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 66406962 is about 8149.0466927120. The cubic root of 66406962 is about 404.9529224352.

The spelling of 66406962 in words is "sixty-six million, four hundred six thousand, nine hundred sixty-two".