162305681556 has 12 divisors (see below), whose sum is σ = 378713256992. Its totient is φ = 54101893848.

The previous prime is 162305681543. The next prime is 162305681597. The reversal of 162305681556 is 655186503261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×162305681556² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762736720 + ... + 6762736743.

Almost surely, 2^162305681556 is an apocalyptic number.

It is an amenable number.

162305681556 is an abundant number, since it is smaller than the sum of its proper divisors (216407575436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162305681556 is a wasteful number, since it uses less digits than its factorization.

162305681556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525473470 (or 13525473468 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 162305681556 in words is "one hundred sixty-two billion, three hundred five million, six hundred eighty-one thousand, five hundred fifty-six".