7151216071 has 4 divisors (see below), whose sum is σ = 7157619352. Its totient is φ = 7144812792.

The previous prime is 7151216011. The next prime is 7151216081. The reversal of 7151216071 is 1706121517.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1706121517 = 599 ⋅2848283.

It is a cyclic number.

It is not a de Polignac number, because 7151216071 - 2¹⁹ = 7150691783 is a prime.

It is a super-2 number, since 2×7151216071² (a number of 21 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 (7151216011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3199965 + ... + 3202198.

It is an arithmetic number, because the mean of its divisors is an integer number (1789404838).

Almost surely, 2^7151216071 is an apocalyptic number.

7151216071 is a deficient number, since it is larger than the sum of its proper divisors (6403281).

7151216071 is a wasteful number, since it uses less digits than its factorization.

7151216071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403280.

The product of its (nonzero) digits is 2940, while the sum is 31.

The square root of 7151216071 is about 84564.8630992802. The cubic root of 7151216071 is about 1926.6077372925.

Adding to 7151216071 its reverse (1706121517), we get a palindrome (8857337588).

The spelling of 7151216071 in words is "seven billion, one hundred fifty-one million, two hundred sixteen thousand, seventy-one".