154564361663 has 4 divisors (see below), whose sum is σ = 154565151888. Its totient is φ = 154563571440.

The previous prime is 154564361599. The next prime is 154564361689. The reversal of 154564361663 is 366163465451.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 154564361663 - 2⁶ = 154564361599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154564361563) 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, 138518 + ... + 572988.

It is an arithmetic number, because the mean of its divisors is an integer number (38641287972).

Almost surely, 2^154564361663 is an apocalyptic number.

154564361663 is a deficient number, since it is larger than the sum of its proper divisors (790225).

154564361663 is an equidigital number, since it uses as much as digits as its factorization.

154564361663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790224.

The product of its digits is 4665600, while the sum is 50.

The spelling of 154564361663 in words is "one hundred fifty-four billion, five hundred sixty-four million, three hundred sixty-one thousand, six hundred sixty-three".