66950135 has 16 divisors (see below), whose sum is σ = 92356416. Its totient is φ = 45639168.

The previous prime is 66950113. The next prime is 66950141. The reversal of 66950135 is 53105966.

It is a cyclic number.

It is not a de Polignac number, because 66950135 - 2¹² = 66946039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66950095 and 66950104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527 + ... + 11583.

It is an arithmetic number, because the mean of its divisors is an integer number (5772276).

Almost surely, 2^66950135 is an apocalyptic number.

66950135 is a deficient number, since it is larger than the sum of its proper divisors (25406281).

66950135 is a wasteful number, since it uses less digits than its factorization.

66950135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11242.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 66950135 is about 8182.3062152427. The cubic root of 66950135 is about 406.0540242927.

The spelling of 66950135 in words is "sixty-six million, nine hundred fifty thousand, one hundred thirty-five".