20015376211255 has 8 divisors (see below), whose sum is σ = 24846673917600. Its totient is φ = 15460152659616.

The previous prime is 20015376211217. The next prime is 20015376211277. The reversal of 20015376211255 is 55211267351002.

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

It is a cyclic number.

It is not a de Polignac number, because 20015376211255 - 2¹⁵ = 20015376178487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69018538515 + ... + 69018538804.

It is an arithmetic number, because the mean of its divisors is an integer number (3105834239700).

Almost surely, 2^{20015376211255} is an apocalyptic number.

20015376211255 is a deficient number, since it is larger than the sum of its proper divisors (4831297706345).

20015376211255 is a wasteful number, since it uses less digits than its factorization.

20015376211255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138037077353.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 20015376211255 in words is "twenty trillion, fifteen billion, three hundred seventy-six million, two hundred eleven thousand, two hundred fifty-five".