20032015155 has 16 divisors (see below), whose sum is σ = 32917474464. Its totient is φ = 10394991360.

The previous prime is 20032015139. The next prime is 20032015219. The reversal of 20032015155 is 55151023002.

It is a happy number.

It is not a de Polignac number, because 20032015155 - 2⁴ = 20032015139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18046306 + ... + 18047415.

It is an arithmetic number, because the mean of its divisors is an integer number (2057342154).

Almost surely, 2^20032015155 is an apocalyptic number.

20032015155 is a deficient number, since it is larger than the sum of its proper divisors (12885459309).

20032015155 is a wasteful number, since it uses less digits than its factorization.

20032015155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36093766.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 20032015155 its reverse (55151023002), we get a palindrome (75183038157).

The spelling of 20032015155 in words is "twenty billion, thirty-two million, fifteen thousand, one hundred fifty-five".