162361281551 has 8 divisors (see below), whose sum is σ = 189871000704. Its totient is φ = 135930375000.

The previous prime is 162361281521. The next prime is 162361281559. The reversal of 162361281551 is 155182163261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162361281551 - 2⁶ = 162361281487 is a prime.

It is a super-2 number, since 2×162361281551² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162361281499 and 162361281508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162361281559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269702825 + ... + 269703426.

It is an arithmetic number, because the mean of its divisors is an integer number (23733875088).

Almost surely, 2^162361281551 is an apocalyptic number.

162361281551 is a deficient number, since it is larger than the sum of its proper divisors (27509719153).

162361281551 is an equidigital number, since it uses as much as digits as its factorization.

162361281551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539406301.

The product of its digits is 86400, while the sum is 41.

The spelling of 162361281551 in words is "one hundred sixty-two billion, three hundred sixty-one million, two hundred eighty-one thousand, five hundred fifty-one".