155840522963 has 4 divisors (see below), whose sum is σ = 155843157720. Its totient is φ = 155837888208.

The previous prime is 155840522951. The next prime is 155840522969. The reversal of 155840522963 is 369225048551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155840522963 - 2⁴ = 155840522947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155840522969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226570 + ... + 1347647.

It is an arithmetic number, because the mean of its divisors is an integer number (38960789430).

Almost surely, 2^155840522963 is an apocalyptic number.

155840522963 is a deficient number, since it is larger than the sum of its proper divisors (2634757).

155840522963 is an equidigital number, since it uses as much as digits as its factorization.

155840522963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634756.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 155840522963 in words is "one hundred fifty-five billion, eight hundred forty million, five hundred twenty-two thousand, nine hundred sixty-three".