4171320515557 has 16 divisors (see below), whose sum is σ = 4611789729792. Its totient is φ = 3748794641280.

The previous prime is 4171320515501. The next prime is 4171320515597. The reversal of 4171320515557 is 7555150231714.

It is a happy number.

It is not a de Polignac number, because 4171320515557 - 2¹⁹ = 4171319991269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4171320515597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17755128 + ... + 17988529.

It is an arithmetic number, because the mean of its divisors is an integer number (288236858112).

Almost surely, 2^{4171320515557} is an apocalyptic number.

4171320515557 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4171320515557 is a deficient number, since it is larger than the sum of its proper divisors (440469214235).

4171320515557 is a wasteful number, since it uses less digits than its factorization.

4171320515557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35743908.

The product of its (nonzero) digits is 735000, while the sum is 46.

The spelling of 4171320515557 in words is "four trillion, one hundred seventy-one billion, three hundred twenty million, five hundred fifteen thousand, five hundred fifty-seven".