70831660033 has 4 divisors (see below), whose sum is σ = 74559642160. Its totient is φ = 67103677908.

The previous prime is 70831660021. The next prime is 70831660069. The reversal of 70831660033 is 33006613807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33006613807 = 90887 ⋅363161.

It is a cyclic number.

It is not a de Polignac number, because 70831660033 - 2²⁵ = 70798105601 is a prime.

It is a super-2 number, since 2×70831660033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70831659974 and 70831660001.

It is not an unprimeable number, because it can be changed into a prime (70831660013) 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 3 ways as a sum of consecutive naturals, for example, 1863991035 + ... + 1863991072.

It is an arithmetic number, because the mean of its divisors is an integer number (18639910540).

Almost surely, 2^70831660033 is an apocalyptic number.

It is an amenable number.

70831660033 is a deficient number, since it is larger than the sum of its proper divisors (3727982127).

70831660033 is a wasteful number, since it uses less digits than its factorization.

70831660033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727982126.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 70831660033 in words is "seventy billion, eight hundred thirty-one million, six hundred sixty thousand, thirty-three".