7140166655 has 12 divisors (see below), whose sum is σ = 9042894792. Its totient is φ = 5411493360.

The previous prime is 7140166639. The next prime is 7140166673. The reversal of 7140166655 is 5566610417.

It is not a de Polignac number, because 7140166655 - 2⁴ = 7140166639 is a prime.

It is a super-2 number, since 2×7140166655² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1976081 + ... + 1979690.

It is an arithmetic number, because the mean of its divisors is an integer number (753574566).

Almost surely, 2^7140166655 is an apocalyptic number.

7140166655 is a deficient number, since it is larger than the sum of its proper divisors (1902728137).

7140166655 is a wasteful number, since it uses less digits than its factorization.

7140166655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955814 (or 3955795 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 7140166655 is about 84499.5068328804. The cubic root of 7140166655 is about 1925.6149521208.

The spelling of 7140166655 in words is "seven billion, one hundred forty million, one hundred sixty-six thousand, six hundred fifty-five".