1201017055615 has 32 divisors (see below), whose sum is σ = 1696395004416. Its totient is φ = 807807098880.

The previous prime is 1201017055603. The next prime is 1201017055621. The reversal of 1201017055615 is 5165507101021.

It is not a de Polignac number, because 1201017055615 - 2¹¹ = 1201017053567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17496282 + ... + 17564791.

It is an arithmetic number, because the mean of its divisors is an integer number (53012343888).

Almost surely, 2^{1201017055615} is an apocalyptic number.

1201017055615 is a deficient number, since it is larger than the sum of its proper divisors (495377948801).

1201017055615 is a wasteful number, since it uses less digits than its factorization.

1201017055615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35061139.

The product of its (nonzero) digits is 10500, while the sum is 34.

The spelling of 1201017055615 in words is "one trillion, two hundred one billion, seventeen million, fifty-five thousand, six hundred fifteen".