66734045 has 16 divisors (see below), whose sum is σ = 92778240. Its totient is φ = 45131904.

The previous prime is 66734029. The next prime is 66734047. The reversal of 66734045 is 54043766.

It is a cyclic number.

It is not a de Polignac number, because 66734045 - 2⁴ = 66734029 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 66733996 and 66734014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66734047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10505 + ... + 15614.

It is an arithmetic number, because the mean of its divisors is an integer number (5798640).

Almost surely, 2^66734045 is an apocalyptic number.

It is an amenable number.

66734045 is a deficient number, since it is larger than the sum of its proper divisors (26044195).

66734045 is a wasteful number, since it uses less digits than its factorization.

66734045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26204.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 66734045 is about 8169.0908306861. The cubic root of 66734045 is about 405.6166899215.

The spelling of 66734045 in words is "sixty-six million, seven hundred thirty-four thousand, forty-five".