7165490775 has 24 divisors (see below), whose sum is σ = 11863742160. Its totient is φ = 3816176640.

The previous prime is 7165490743. The next prime is 7165490777. The reversal of 7165490775 is 5770945617.

It is a happy number.

It is not a de Polignac number, because 7165490775 - 2⁵ = 7165490743 is a prime.

It is a super-2 number, since 2×7165490775² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7165490777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14202 + ... + 120551.

It is an arithmetic number, because the mean of its divisors is an integer number (494322590).

Almost surely, 2^7165490775 is an apocalyptic number.

7165490775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7165490775 is a deficient number, since it is larger than the sum of its proper divisors (4698251385).

7165490775 is a wasteful number, since it uses less digits than its factorization.

7165490775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135475 (or 135470 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 51.

The square root of 7165490775 is about 84649.2219397202. The cubic root of 7165490775 is about 1927.8888003643. Note that the first 4 decimals are identical.

The spelling of 7165490775 in words is "seven billion, one hundred sixty-five million, four hundred ninety thousand, seven hundred seventy-five".