216046461025 has 12 divisors (see below), whose sum is σ = 268082032252. Its totient is φ = 172718187840.

The previous prime is 216046461023. The next prime is 216046461061. The reversal of 216046461025 is 520164640612.

It can be written as a sum of positive squares in 6 ways, for example, as 7656950016 + 208389511009 = 87504^2 + 456497^2 .

It is not a de Polignac number, because 216046461025 - 2¹ = 216046461023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216046461023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2937474 + ... + 3010123.

Almost surely, 2^216046461025 is an apocalyptic number.

216046461025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216046461025 is a deficient number, since it is larger than the sum of its proper divisors (52035571227).

216046461025 is a wasteful number, since it uses less digits than its factorization.

216046461025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949060 (or 5949055 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 216046461025 in words is "two hundred sixteen billion, forty-six million, four hundred sixty-one thousand, twenty-five".