168217552477370 has 16 divisors (see below), whose sum is σ = 330318103046688. Its totient is φ = 61170019082640.

The previous prime is 168217552477349. The next prime is 168217552477379. The reversal of 168217552477370 is 73774255712861.

It is a super-2 number, since 2×168217552477370² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168217552477297 and 168217552477306.

It is not an unprimeable number, because it can be changed into a prime (168217552477379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764625238424 + ... + 764625238643.

It is an arithmetic number, because the mean of its divisors is an integer number (20644881440418).

Almost surely, 2^{168217552477370} is an apocalyptic number.

168217552477370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168217552477370 is a deficient number, since it is larger than the sum of its proper divisors (162100550569318).

168217552477370 is a wasteful number, since it uses less digits than its factorization.

168217552477370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529250477085.

The product of its (nonzero) digits is 138297600, while the sum is 65.

The spelling of 168217552477370 in words is "one hundred sixty-eight trillion, two hundred seventeen billion, five hundred fifty-two million, four hundred seventy-seven thousand, three hundred seventy".