52161271999970 has 16 divisors (see below), whose sum is σ = 107303188114368. Its totient is φ = 17883864685680.

The previous prime is 52161271999961. The next prime is 52161272000009. The reversal of 52161271999970 is 7999917216125.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52161271999970.

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, 372580514216 + ... + 372580514355.

It is an arithmetic number, because the mean of its divisors is an integer number (6706449257148).

Almost surely, 2^{52161271999970} is an apocalyptic number.

52161271999970 is an abundant number, since it is smaller than the sum of its proper divisors (55141916114398).

52161271999970 is a wasteful number, since it uses less digits than its factorization.

52161271999970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745161028585.

The product of its (nonzero) digits is 38578680, while the sum is 68.

The spelling of 52161271999970 in words is "fifty-two trillion, one hundred sixty-one billion, two hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred seventy".