216148746723 has 48 divisors (see below), whose sum is σ = 359377894656. Its totient is φ = 113141957760.

The previous prime is 216148746719. The next prime is 216148746743. The reversal of 216148746723 is 327647841612.

It is a Cunningham number, because it is equal to 464918²-1.

It is not a de Polignac number, because 216148746723 - 2² = 216148746719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216148746743) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232461 + ... + 697377.

It is an arithmetic number, because the mean of its divisors is an integer number (7487039472).

Almost surely, 2^216148746723 is an apocalyptic number.

216148746723 is a deficient number, since it is larger than the sum of its proper divisors (143229147933).

216148746723 is a wasteful number, since it uses less digits than its factorization.

216148746723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465084 (or 465071 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 216148746723 in words is "two hundred sixteen billion, one hundred forty-eight million, seven hundred forty-six thousand, seven hundred twenty-three".