20167155015 has 64 divisors (see below), whose sum is σ = 37796453376. Its totient is φ = 8990134272.

The previous prime is 20167154947. The next prime is 20167155017. The reversal of 20167155015 is 51055176102.

It is a happy number.

It is not a de Polignac number, because 20167155015 - 2⁸ = 20167154759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20167155017) 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 63 ways as a sum of consecutive naturals, for example, 3035277 + ... + 3041913.

It is an arithmetic number, because the mean of its divisors is an integer number (590569584).

Almost surely, 2^20167155015 is an apocalyptic number.

20167155015 is a deficient number, since it is larger than the sum of its proper divisors (17629298361).

20167155015 is a wasteful number, since it uses less digits than its factorization.

20167155015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its (nonzero) digits is 10500, while the sum is 33.

It can be divided in two parts, 201671 and 55015, that added together give a triangular number (256686 = T₇₁₆).

The spelling of 20167155015 in words is "twenty billion, one hundred sixty-seven million, one hundred fifty-five thousand, fifteen".