66970035 has 48 divisors (see below), whose sum is σ = 127471968. Its totient is φ = 32256000.

The previous prime is 66969989. The next prime is 66970039. The reversal of 66970035 is 53007966.

It is a happy number.

It is not a de Polignac number, because 66970035 - 2⁷ = 66969907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66970039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95185 + ... + 95885.

It is an arithmetic number, because the mean of its divisors is an integer number (2655666).

Almost surely, 2^66970035 is an apocalyptic number.

66970035 is a deficient number, since it is larger than the sum of its proper divisors (60501933).

66970035 is a wasteful number, since it uses less digits than its factorization.

66970035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 66970035 is about 8183.5221634697. The cubic root of 66970035 is about 406.0942516182.

The spelling of 66970035 in words is "sixty-six million, nine hundred seventy thousand, thirty-five".