766137551011 has 4 divisors (see below), whose sum is σ = 875585772592. Its totient is φ = 656689329432.

The previous prime is 766137550987. The next prime is 766137551021. The reversal of 766137551011 is 110155731667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 766137551011 - 2²⁵ = 766103996579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766137551021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54724110780 + ... + 54724110793.

It is an arithmetic number, because the mean of its divisors is an integer number (218896443148).

Almost surely, 2^766137551011 is an apocalyptic number.

766137551011 is a deficient number, since it is larger than the sum of its proper divisors (109448221581).

766137551011 is a wasteful number, since it uses less digits than its factorization.

766137551011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109448221580.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 766137551011 in words is "seven hundred sixty-six billion, one hundred thirty-seven million, five hundred fifty-one thousand, eleven".