7161500055657 has 32 divisors (see below), whose sum is σ = 9872736572160. Its totient is φ = 4615821987840.

The previous prime is 7161500055643. The next prime is 7161500055673. The reversal of 7161500055657 is 7565500051617.

It is not a de Polignac number, because 7161500055657 - 2²² = 7161495861353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7161500055607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662053 + ... + 3842045.

It is an arithmetic number, because the mean of its divisors is an integer number (308523017880).

Almost surely, 2^{7161500055657} is an apocalyptic number.

It is an amenable number.

7161500055657 is a deficient number, since it is larger than the sum of its proper divisors (2711236516503).

7161500055657 is a wasteful number, since it uses less digits than its factorization.

7161500055657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180273.

The product of its (nonzero) digits is 1102500, while the sum is 48.

The spelling of 7161500055657 in words is "seven trillion, one hundred sixty-one billion, five hundred million, fifty-five thousand, six hundred fifty-seven".