155504216163 has 8 divisors (see below), whose sum is σ = 207677193808. Its totient is φ = 103500357984.

The previous prime is 155504216137. The next prime is 155504216167. The reversal of 155504216163 is 361612405551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155504216163 - 2¹² = 155504212067 is a prime.

It is a super-2 number, since 2×155504216163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155504216167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42277720 + ... + 42281397.

It is an arithmetic number, because the mean of its divisors is an integer number (25959649226).

Almost surely, 2^155504216163 is an apocalyptic number.

155504216163 is a deficient number, since it is larger than the sum of its proper divisors (52172977645).

155504216163 is an equidigital number, since it uses as much as digits as its factorization.

155504216163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84559733.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 155504216163 in words is "one hundred fifty-five billion, five hundred four million, two hundred sixteen thousand, one hundred sixty-three".