201645248476 has 12 divisors (see below), whose sum is σ = 403290497008. Its totient is φ = 86419392192.

The previous prime is 201645248443. The next prime is 201645248489. The reversal of 201645248476 is 674842546102.

201645248476 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3600807981 + ... + 3600808036.

Almost surely, 2^201645248476 is an apocalyptic number.

It is an amenable number.

201645248476 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201645248476 is a wasteful number, since it uses less digits than its factorization.

201645248476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201616028 (or 7201616026 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 201645248476 in words is "two hundred one billion, six hundred forty-five million, two hundred forty-eight thousand, four hundred seventy-six".