165154256405454 has 32 divisors (see below), whose sum is σ = 334314599310720. Its totient is φ = 54383842742112.

The previous prime is 165154256405449. The next prime is 165154256405507. The reversal of 165154256405454 is 454504652451561.

165154256405454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×165154256405454³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165154256405394 and 165154256405403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6828364 + ... + 19414815.

It is an arithmetic number, because the mean of its divisors is an integer number (10447331228460).

Almost surely, 2^{165154256405454} is an apocalyptic number.

165154256405454 is an abundant number, since it is smaller than the sum of its proper divisors (169160342905266).

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

165154256405454 is a wasteful number, since it uses less digits than its factorization.

165154256405454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26255904.

The product of its (nonzero) digits is 57600000, while the sum is 57.

The spelling of 165154256405454 in words is "one hundred sixty-five trillion, one hundred fifty-four billion, two hundred fifty-six million, four hundred five thousand, four hundred fifty-four".