66070495381 has 8 divisors (see below), whose sum is σ = 72080532000. Its totient is φ = 60061063440.

The previous prime is 66070495369. The next prime is 66070495391. The reversal of 66070495381 is 18359407066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66070495381 - 2¹⁷ = 66070364309 is a prime.

It is a super-2 number, since 2×66070495381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66070495391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94695 + ... + 375643.

It is an arithmetic number, because the mean of its divisors is an integer number (9010066500).

Almost surely, 2^66070495381 is an apocalyptic number.

It is an amenable number.

66070495381 is a deficient number, since it is larger than the sum of its proper divisors (6010036619).

66070495381 is a wasteful number, since it uses less digits than its factorization.

66070495381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302339.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 66070495381 in words is "sixty-six billion, seventy million, four hundred ninety-five thousand, three hundred eighty-one".