201266163451 has 4 divisors (see below), whose sum is σ = 201268116400. Its totient is φ = 201264210504.

The previous prime is 201266163409. The next prime is 201266163481. The reversal of 201266163451 is 154361662102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201266163451 - 2⁷ = 201266163323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201266163451.

It is not an unprimeable number, because it can be changed into a prime (201266163401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812736 + ... + 1031053.

It is an arithmetic number, because the mean of its divisors is an integer number (50317029100).

Almost surely, 2^201266163451 is an apocalyptic number.

201266163451 is a deficient number, since it is larger than the sum of its proper divisors (1952949).

201266163451 is a wasteful number, since it uses less digits than its factorization.

201266163451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952948.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 201266163451 in words is "two hundred one billion, two hundred sixty-six million, one hundred sixty-three thousand, four hundred fifty-one".