155008663028659 has 16 divisors (see below), whose sum is σ = 170889086016000. Its totient is φ = 139429957266720.

The previous prime is 155008663028641. The next prime is 155008663028683. The reversal of 155008663028659 is 956820366800551.

It is a cyclic number.

It is not a de Polignac number, because 155008663028659 - 2²⁷ = 155008528810931 is a prime.

It is a super-2 number, since 2×155008663028659² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155008663028659.

It is not an unprimeable number, because it can be changed into a prime (155008663028159) 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, 89041689 + ... + 90765850.

It is an arithmetic number, because the mean of its divisors is an integer number (10680567876000).

Almost surely, 2^{155008663028659} is an apocalyptic number.

155008663028659 is a deficient number, since it is larger than the sum of its proper divisors (15880422987341).

155008663028659 is a wasteful number, since it uses less digits than its factorization.

155008663028659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179808378.

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 155008663028659 in words is "one hundred fifty-five trillion, eight billion, six hundred sixty-three million, twenty-eight thousand, six hundred fifty-nine".