243133652320761 has 16 divisors (see below), whose sum is σ = 334682916369408. Its totient is φ = 156882617020800.

The previous prime is 243133652320759. The next prime is 243133652320799. The reversal of 243133652320761 is 167023256331342.

It is not a de Polignac number, because 243133652320761 - 2¹ = 243133652320759 is a prime.

It is a super-2 number, since 2×243133652320761² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243133652320761.

It is not an unprimeable number, because it can be changed into a prime (243133652320561) 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, 5733992580 + ... + 5734034981.

It is an arithmetic number, because the mean of its divisors is an integer number (20917682273088).

Almost surely, 2^{243133652320761} is an apocalyptic number.

It is an amenable number.

243133652320761 is a deficient number, since it is larger than the sum of its proper divisors (91549264048647).

243133652320761 is a wasteful number, since it uses less digits than its factorization.

243133652320761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468027792.

The product of its (nonzero) digits is 3265920, while the sum is 48.

The spelling of 243133652320761 in words is "two hundred forty-three trillion, one hundred thirty-three billion, six hundred fifty-two million, three hundred twenty thousand, seven hundred sixty-one".