201216467451 has 8 divisors (see below), whose sum is σ = 268352230720. Its totient is φ = 134112507912.

The previous prime is 201216467407. The next prime is 201216467453. The reversal of 201216467451 is 154764612102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201216467451 - 2²⁷ = 201082249723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201216467453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7936165 + ... + 7961478.

It is an arithmetic number, because the mean of its divisors is an integer number (33544028840).

Almost surely, 2^201216467451 is an apocalyptic number.

201216467451 is a deficient number, since it is larger than the sum of its proper divisors (67135763269).

201216467451 is a wasteful number, since it uses less digits than its factorization.

201216467451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15901865.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 201216467451 in words is "two hundred one billion, two hundred sixteen million, four hundred sixty-seven thousand, four hundred fifty-one".