653162731540 has 24 divisors (see below), whose sum is σ = 1496336440032. Its totient is φ = 237513720480.

The previous prime is 653162731537. The next prime is 653162731561. The reversal of 653162731540 is 45137261356.

It is a super-2 number, since 2×653162731540² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484460534 + ... + 1484460973.

It is an arithmetic number, because the mean of its divisors is an integer number (62347351668).

Almost surely, 2^653162731540 is an apocalyptic number.

It is an amenable number.

653162731540 is an abundant number, since it is smaller than the sum of its proper divisors (843173708492).

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

653162731540 is a wasteful number, since it uses less digits than its factorization.

653162731540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968921527 (or 2968921525 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

Adding to 653162731540 its reverse (45137261356), we get a palindrome (698299992896).

The spelling of 653162731540 in words is "six hundred fifty-three billion, one hundred sixty-two million, seven hundred thirty-one thousand, five hundred forty".