162778383715210 has 16 divisors (see below), whose sum is σ = 297967210869600. Its totient is φ = 64007771223376.

The previous prime is 162778383715133. The next prime is 162778383715217. The reversal of 162778383715210 is 12517383877261.

It is a happy number.

It is a super-2 number, since 2×162778383715210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162778383715217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137947782220 + ... + 137947783399.

It is an arithmetic number, because the mean of its divisors is an integer number (18622950679350).

Almost surely, 2^{162778383715210} is an apocalyptic number.

162778383715210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162778383715210 is a deficient number, since it is larger than the sum of its proper divisors (135188827154390).

162778383715210 is a wasteful number, since it uses less digits than its factorization.

162778383715210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275895565685.

The product of its (nonzero) digits is 23708160, while the sum is 61.

The spelling of 162778383715210 in words is "one hundred sixty-two trillion, seven hundred seventy-eight billion, three hundred eighty-three million, seven hundred fifteen thousand, two hundred ten".