653365124261 has 16 divisors (see below), whose sum is σ = 718491863040. Its totient is φ = 591793432560.

The previous prime is 653365124249. The next prime is 653365124273. The reversal of 653365124261 is 162421563356.

It is an interprime number because it is at equal distance from previous prime (653365124249) and next prime (653365124273).

It is a cyclic number.

It is not a de Polignac number, because 653365124261 - 2¹⁰ = 653365123237 is a prime.

It is a super-2 number, since 2×653365124261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653365121261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6633515 + ... + 6731288.

It is an arithmetic number, because the mean of its divisors is an integer number (44905741440).

Almost surely, 2^653365124261 is an apocalyptic number.

It is an amenable number.

653365124261 is a deficient number, since it is larger than the sum of its proper divisors (65126738779).

653365124261 is a wasteful number, since it uses less digits than its factorization.

653365124261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364936.

The product of its digits is 777600, while the sum is 44.

The spelling of 653365124261 in words is "six hundred fifty-three billion, three hundred sixty-five million, one hundred twenty-four thousand, two hundred sixty-one".