155205040502 has 16 divisors (see below), whose sum is σ = 233598729600. Its totient is φ = 77338916928.

The previous prime is 155205040489. The next prime is 155205040531. The reversal of 155205040502 is 205040502551.

155205040502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791874 + ... + 2846922.

It is an arithmetic number, because the mean of its divisors is an integer number (14599920600).

Almost surely, 2^155205040502 is an apocalyptic number.

155205040502 is a deficient number, since it is larger than the sum of its proper divisors (78393689098).

155205040502 is a wasteful number, since it uses less digits than its factorization.

155205040502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59815.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 155205040502 in words is "one hundred fifty-five billion, two hundred five million, forty thousand, five hundred two".