82216432154 has 4 divisors (see below), whose sum is σ = 123324648234. Its totient is φ = 41108216076.

The previous prime is 82216432147. The next prime is 82216432157. The reversal of 82216432154 is 45123461228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53535316129 + 28681116025 = 231377^2 + 169355^2 .

It is a super-2 number, since 2×82216432154² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82216432157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20554108037 + ... + 20554108040.

Almost surely, 2^82216432154 is an apocalyptic number.

82216432154 is a deficient number, since it is larger than the sum of its proper divisors (41108216080).

82216432154 is a wasteful number, since it uses less digits than its factorization.

82216432154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41108216079.

The product of its digits is 92160, while the sum is 38.

The spelling of 82216432154 in words is "eighty-two billion, two hundred sixteen million, four hundred thirty-two thousand, one hundred fifty-four".