156126761549 has 8 divisors (see below), whose sum is σ = 170383240800. Its totient is φ = 141880805200.

The previous prime is 156126761521. The next prime is 156126761551. The reversal of 156126761549 is 945167621651.

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

It is a cyclic number.

It is not a de Polignac number, because 156126761549 - 2⁸ = 156126761293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156126761549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156126761519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2599682 + ... + 2659059.

It is an arithmetic number, because the mean of its divisors is an integer number (21297905100).

Almost surely, 2^156126761549 is an apocalyptic number.

It is an amenable number.

156126761549 is a deficient number, since it is larger than the sum of its proper divisors (14256479251).

156126761549 is a wasteful number, since it uses less digits than its factorization.

156126761549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261451.

The product of its digits is 2721600, while the sum is 53.

The spelling of 156126761549 in words is "one hundred fifty-six billion, one hundred twenty-six million, seven hundred sixty-one thousand, five hundred forty-nine".