2163625665354 has 32 divisors (see below), whose sum is σ = 5090883920640. Its totient is φ = 678784522176.

The previous prime is 2163625665353. The next prime is 2163625665359. The reversal of 2163625665354 is 4535665263612.

It is a happy number.

2163625665354 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 625 + 6 + 6 + 5 + 3 + 5 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2163625665354.

It is not an unprimeable number, because it can be changed into a prime (2163625665353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178444434 + ... + 1178446269.

It is an arithmetic number, because the mean of its divisors is an integer number (159090122520).

Almost surely, 2^{2163625665354} is an apocalyptic number.

2163625665354 is an abundant number, since it is smaller than the sum of its proper divisors (2927258255286).

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

2163625665354 is a wasteful number, since it uses less digits than its factorization.

2163625665354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356890731 (or 2356890725 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 2163625665354 in words is "two trillion, one hundred sixty-three billion, six hundred twenty-five million, six hundred sixty-five thousand, three hundred fifty-four".