66342762 has 24 divisors (see below), whose sum is σ = 145228356. Its totient is φ = 21885696.

The previous prime is 66342761. The next prime is 66342763. The reversal of 66342762 is 26724366.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66342761) and next prime (66342763).

It can be written as a sum of positive squares in 2 ways, for example, as 61638201 + 4704561 = 7851^2 + 2169^2 .

It is not an unprimeable number, because it can be changed into a prime (66342761) 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, 17253 + ... + 20744.

Almost surely, 2^66342762 is an apocalyptic number.

66342762 is an abundant number, since it is smaller than the sum of its proper divisors (78885594).

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

66342762 is a wasteful number, since it uses less digits than its factorization.

66342762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38102 (or 38099 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 66342762 is about 8145.1066291363. The cubic root of 66342762 is about 404.8223821057.

The spelling of 66342762 in words is "sixty-six million, three hundred forty-two thousand, seven hundred sixty-two".