2165154427754 has 8 divisors (see below), whose sum is σ = 3438774679428. Its totient is φ = 1018896201280.

The previous prime is 2165154427753. The next prime is 2165154427757. The reversal of 2165154427754 is 4577244515612.

It can be written as a sum of positive squares in 2 ways, for example, as 2101708374529 + 63446053225 = 1449727^2 + 251885^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2165154427696 and 2165154427705.

It is not an unprimeable number, because it can be changed into a prime (2165154427753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31840506257 + ... + 31840506324.

Almost surely, 2^{2165154427754} is an apocalyptic number.

2165154427754 is a deficient number, since it is larger than the sum of its proper divisors (1273620251674).

2165154427754 is a wasteful number, since it uses less digits than its factorization.

2165154427754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63681012600.

The product of its digits is 9408000, while the sum is 53.

The spelling of 2165154427754 in words is "two trillion, one hundred sixty-five billion, one hundred fifty-four million, four hundred twenty-seven thousand, seven hundred fifty-four".