755158666661 has 12 divisors (see below), whose sum is σ = 902193345312. Its totient is φ = 619136295096.

The previous prime is 755158666649. The next prime is 755158666681. The reversal of 755158666661 is 166666851557.

It is a de Polignac number, because none of the positive numbers 2^k-755158666661 is a prime.

It is a super-2 number, since 2×755158666661² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 755158666594 and 755158666603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755158666681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101962091 + ... + 101969496.

It is an arithmetic number, because the mean of its divisors is an integer number (75182778776).

Almost surely, 2^755158666661 is an apocalyptic number.

It is an amenable number.

755158666661 is a deficient number, since it is larger than the sum of its proper divisors (147034678651).

755158666661 is a wasteful number, since it uses less digits than its factorization.

755158666661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203931640 (or 203931617 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 62.

The spelling of 755158666661 in words is "seven hundred fifty-five billion, one hundred fifty-eight million, six hundred sixty-six thousand, six hundred sixty-one".