651040143361 has 4 divisors (see below), whose sum is σ = 651576863572. Its totient is φ = 650503423152.

The previous prime is 651040143353. The next prime is 651040143407. The reversal of 651040143361 is 163341040156.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13278183361 + 637761960000 = 115231^2 + 798600^2 .

It is a cyclic number.

It is not a de Polignac number, because 651040143361 - 2³ = 651040143353 is a prime.

It is a super-2 number, since 2×651040143361² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651040144361) 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, 268358286 + ... + 268360711.

It is an arithmetic number, because the mean of its divisors is an integer number (162894215893).

Almost surely, 2^651040143361 is an apocalyptic number.

It is an amenable number.

651040143361 is a deficient number, since it is larger than the sum of its proper divisors (536720211).

651040143361 is a wasteful number, since it uses less digits than its factorization.

651040143361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536720210.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 651040143361 in words is "six hundred fifty-one billion, forty million, one hundred forty-three thousand, three hundred sixty-one".