216154680 has 96 divisors (see below), whose sum is σ = 754356240. Its totient is φ = 49405440.

The previous prime is 216154657. The next prime is 216154717. The reversal of 216154680 is 86451612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12501 + ... + 24260.

Almost surely, 2^216154680 is an apocalyptic number.

216154680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216154680 is an abundant number, since it is smaller than the sum of its proper divisors (538201560).

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

216154680 is a wasteful number, since it uses less digits than its factorization.

216154680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36789 (or 36778 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 216154680 is about 14702.1998353988. The cubic root of 216154680 is about 600.1431880481.

The spelling of 216154680 in words is "two hundred sixteen million, one hundred fifty-four thousand, six hundred eighty".