66470661435 has 32 divisors (see below), whose sum is σ = 115561912320. Its totient is φ = 32501779200.

The previous prime is 66470661401. The next prime is 66470661437. The reversal of 66470661435 is 53416607466.

It is not a de Polignac number, because 66470661435 - 2⁶ = 66470661371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66470661437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3752946 + ... + 3770615.

It is an arithmetic number, because the mean of its divisors is an integer number (3611309760).

Almost surely, 2^66470661435 is an apocalyptic number.

66470661435 is a deficient number, since it is larger than the sum of its proper divisors (49091250885).

66470661435 is a wasteful number, since it uses less digits than its factorization.

66470661435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523619.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 66470661435 in words is "sixty-six billion, four hundred seventy million, six hundred sixty-one thousand, four hundred thirty-five".