2154343415445 has 96 divisors (see below), whose sum is σ = 4085869866624. Its totient is φ = 1043641843200.

The previous prime is 2154343415417. The next prime is 2154343415461. The reversal of 2154343415445 is 5445143434512.

2154343415445 is a `hidden beast` number, since 2 + 154 + 3 + 43 + 4 + 15 + 445 = 666.

It is not a de Polignac number, because 2154343415445 - 2¹² = 2154343411349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2154343415445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36853290 + ... + 36911700.

It is an arithmetic number, because the mean of its divisors is an integer number (42561144444).

Almost surely, 2^{2154343415445} is an apocalyptic number.

It is an amenable number.

2154343415445 is a deficient number, since it is larger than the sum of its proper divisors (1931526451179).

2154343415445 is a wasteful number, since it uses less digits than its factorization.

2154343415445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59443 (or 59440 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 2154343415445 its reverse (5445143434512), we get a palindrome (7599486849957).

The spelling of 2154343415445 in words is "two trillion, one hundred fifty-four billion, three hundred forty-three million, four hundred fifteen thousand, four hundred forty-five".