542551632165 has 32 divisors (see below), whose sum is σ = 968289356160. Its totient is φ = 288234934272.

The previous prime is 542551632163. The next prime is 542551632167. The reversal of 542551632165 is 561236155245.

542551632165 is a `hidden beast` number, since 5 + 4 + 2 + 5 + 5 + 1 + 632 + 1 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (542551632163) and next prime (542551632167).

It is not a de Polignac number, because 542551632165 - 2¹ = 542551632163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 542551632165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542551632163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7784179 + ... + 7853568.

It is an arithmetic number, because the mean of its divisors is an integer number (30259042380).

Almost surely, 2^542551632165 is an apocalyptic number.

It is an amenable number.

542551632165 is a deficient number, since it is larger than the sum of its proper divisors (425737723995).

542551632165 is a wasteful number, since it uses less digits than its factorization.

542551632165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15638018 (or 15638012 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 542551632165 in words is "five hundred forty-two billion, five hundred fifty-one million, six hundred thirty-two thousand, one hundred sixty-five".