216452102516 has 72 divisors (see below), whose sum is σ = 426229027224. Its totient is φ = 95600332800.

The previous prime is 216452102491. The next prime is 216452102519. The reversal of 216452102516 is 615201254612.

It can be written as a sum of positive squares in 12 ways, for example, as 126169881616 + 90282220900 = 355204^2 + 300470^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216452102519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4919816 + ... + 4963616.

Almost surely, 2^216452102516 is an apocalyptic number.

216452102516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216452102516 is a deficient number, since it is larger than the sum of its proper divisors (209776924708).

216452102516 is a wasteful number, since it uses less digits than its factorization.

216452102516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43989 (or 43958 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 216452102516 in words is "two hundred sixteen billion, four hundred fifty-two million, one hundred two thousand, five hundred sixteen".