216546342102 has 48 divisors (see below), whose sum is σ = 476745272640. Its totient is φ = 71025042816.

The previous prime is 216546342097. The next prime is 216546342121. The reversal of 216546342102 is 201243645612.

216546342102 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 4 + 634 + 2 + 10 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156778 + ... + 676514.

It is an arithmetic number, because the mean of its divisors is an integer number (9932193180).

Almost surely, 2^216546342102 is an apocalyptic number.

216546342102 is an abundant number, since it is smaller than the sum of its proper divisors (260198930538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216546342102 is a wasteful number, since it uses less digits than its factorization.

216546342102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520117 (or 520114 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 216546342102 its reverse (201243645612), we get a palindrome (417789987714).

The spelling of 216546342102 in words is "two hundred sixteen billion, five hundred forty-six million, three hundred forty-two thousand, one hundred two".