661523241335 has 8 divisors (see below), whose sum is σ = 865994061456. Its totient is φ = 481107811840.

The previous prime is 661523241317. The next prime is 661523241343. The reversal of 661523241335 is 533142325166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 661523241335 - 2³⁰ = 660449499511 is a prime.

It is a super-2 number, since 2×661523241335² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 661523241292 and 661523241301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6013847594 + ... + 6013847703.

It is an arithmetic number, because the mean of its divisors is an integer number (108249257682).

Almost surely, 2^661523241335 is an apocalyptic number.

661523241335 is a deficient number, since it is larger than the sum of its proper divisors (204470820121).

661523241335 is a wasteful number, since it uses less digits than its factorization.

661523241335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12027695313.

The product of its digits is 388800, while the sum is 41.

The spelling of 661523241335 in words is "six hundred sixty-one billion, five hundred twenty-three million, two hundred forty-one thousand, three hundred thirty-five".