162178520471 has 12 divisors (see below), whose sum is σ = 178274773656. Its totient is φ = 147424735920.

The previous prime is 162178520459. The next prime is 162178520503. The reversal of 162178520471 is 174025871261.

It is a de Polignac number, because none of the positive numbers 2^k-162178520471 is a prime.

It is a super-3 number, since 3×162178520471³ (a number of 35 digits) contains 333 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 (162178520431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2101745 + ... + 2177541.

It is an arithmetic number, because the mean of its divisors is an integer number (14856231138).

Almost surely, 2^162178520471 is an apocalyptic number.

162178520471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

162178520471 is a deficient number, since it is larger than the sum of its proper divisors (16096253185).

162178520471 is a wasteful number, since it uses less digits than its factorization.

162178520471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93502 (or 93491 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 162178520471 in words is "one hundred sixty-two billion, one hundred seventy-eight million, five hundred twenty thousand, four hundred seventy-one".