154213532641663 has 32 divisors (see below), whose sum is σ = 180639302236992. Its totient is φ = 131184702499840.

The previous prime is 154213532641627. The next prime is 154213532641703. The reversal of 154213532641663 is 366146235312451.

It is not a de Polignac number, because 154213532641663 - 2¹³ = 154213532633471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154213532641663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154213532671663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15783406 + ... + 23612347.

It is an arithmetic number, because the mean of its divisors is an integer number (5644978194906).

Almost surely, 2^{154213532641663} is an apocalyptic number.

154213532641663 is a deficient number, since it is larger than the sum of its proper divisors (26425769595329).

154213532641663 is a wasteful number, since it uses less digits than its factorization.

154213532641663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39395976 (or 39395954 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 52.

The spelling of 154213532641663 in words is "one hundred fifty-four trillion, two hundred thirteen billion, five hundred thirty-two million, six hundred forty-one thousand, six hundred sixty-three".