162661454415 has 12 divisors (see below), whose sum is σ = 281946521064. Its totient is φ = 86752775664.

The previous prime is 162661454407. The next prime is 162661454441. The reversal of 162661454415 is 514454166261.

162661454415 is a `hidden beast` number, since 1 + 6 + 2 + 66 + 145 + 441 + 5 = 666.

It is not a de Polignac number, because 162661454415 - 2³ = 162661454407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3614698987 = 162661454415 / (1 + 6 + 2 + 6 + 6 + 1 + 4 + 5 + 4 + 4 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1807349449 + ... + 1807349538.

It is an arithmetic number, because the mean of its divisors is an integer number (23495543422).

Almost surely, 2^162661454415 is an apocalyptic number.

162661454415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

162661454415 is a deficient number, since it is larger than the sum of its proper divisors (119285066649).

162661454415 is a wasteful number, since it uses less digits than its factorization.

162661454415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614698998 (or 3614698995 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 162661454415 in words is "one hundred sixty-two billion, six hundred sixty-one million, four hundred fifty-four thousand, four hundred fifteen".