216371546954 has 32 divisors (see below), whose sum is σ = 342742965840. Its totient is φ = 102286912000.

The previous prime is 216371546899. The next prime is 216371546959. The reversal of 216371546954 is 459645173612.

It can be written as a sum of positive squares in 8 ways, for example, as 43502696329 + 172868850625 = 208573^2 + 415775^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 216371546896 and 216371546905.

It is not an unprimeable number, because it can be changed into a prime (216371546959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534004 + ... + 1669104.

Almost surely, 2^216371546954 is an apocalyptic number.

216371546954 is a deficient number, since it is larger than the sum of its proper divisors (126371418886).

216371546954 is a wasteful number, since it uses less digits than its factorization.

216371546954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135706.

The product of its digits is 5443200, while the sum is 53.

The spelling of 216371546954 in words is "two hundred sixteen billion, three hundred seventy-one million, five hundred forty-six thousand, nine hundred fifty-four".