115766620437 has 32 divisors (see below), whose sum is σ = 175205116800. Its totient is φ = 67403826432.

The previous prime is 115766620433. The next prime is 115766620439. The reversal of 115766620437 is 734026667511.

It is a happy number.

It is not a de Polignac number, because 115766620437 - 2² = 115766620433 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115766620433) 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 31 ways as a sum of consecutive naturals, for example, 471739 + ... + 673847.

It is an arithmetic number, because the mean of its divisors is an integer number (5475159900).

Almost surely, 2^115766620437 is an apocalyptic number.

It is an amenable number.

115766620437 is a deficient number, since it is larger than the sum of its proper divisors (59438496363).

115766620437 is a wasteful number, since it uses less digits than its factorization.

115766620437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202917.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 115766620437 in words is "one hundred fifteen billion, seven hundred sixty-six million, six hundred twenty thousand, four hundred thirty-seven".