18862116162461 has 48 divisors (see below), whose sum is σ = 23560179451200. Its totient is φ = 14958605249280.

The previous prime is 18862116162413. The next prime is 18862116162641. The reversal of 18862116162461 is 16426161126881.

It is a happy number.

It is not a de Polignac number, because 18862116162461 - 2¹⁸ = 18862115900317 is a prime.

It is a super-2 number, since 2×18862116162461² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18862116162061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11452250 + ... + 12995316.

It is an arithmetic number, because the mean of its divisors is an integer number (490837071900).

Almost surely, 2^{18862116162461} is an apocalyptic number.

18862116162461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18862116162461 is a deficient number, since it is larger than the sum of its proper divisors (4698063288739).

18862116162461 is a wasteful number, since it uses less digits than its factorization.

18862116162461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543530 (or 1543519 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The spelling of 18862116162461 in words is "eighteen trillion, eight hundred sixty-two billion, one hundred sixteen million, one hundred sixty-two thousand, four hundred sixty-one".