201262510256663 has 16 divisors (see below), whose sum is σ = 206128498118400. Its totient is φ = 196405018031040.

The previous prime is 201262510256609. The next prime is 201262510256693. The reversal of 201262510256663 is 366652015262102.

It is a cyclic number.

It is not a de Polignac number, because 201262510256663 - 2⁴² = 196864463745559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201262510256693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259783808 + ... + 260557386.

It is an arithmetic number, because the mean of its divisors is an integer number (12883031132400).

Almost surely, 2^{201262510256663} is an apocalyptic number.

201262510256663 is a deficient number, since it is larger than the sum of its proper divisors (4865987861737).

201262510256663 is a wasteful number, since it uses less digits than its factorization.

201262510256663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779062.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 201262510256663 in words is "two hundred one trillion, two hundred sixty-two billion, five hundred ten million, two hundred fifty-six thousand, six hundred sixty-three".