766551201651 has 12 divisors (see below), whose sum is σ = 1107534449320. Its totient is φ = 510898523040.

The previous prime is 766551201623. The next prime is 766551201667. The reversal of 766551201651 is 156102155667.

It is a happy number.

766551201651 is a `hidden beast` number, since 7 + 66 + 551 + 20 + 16 + 5 + 1 = 666.

766551201651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 766551201651 - 2¹⁹ = 766550677363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 766551201597 and 766551201606.

It is not an unprimeable number, because it can be changed into a prime (766551201671) 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, 11265145 + ... + 11332986.

Almost surely, 2^766551201651 is an apocalyptic number.

766551201651 is a deficient number, since it is larger than the sum of its proper divisors (340983247669).

766551201651 is a wasteful number, since it uses less digits than its factorization.

766551201651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22601906 (or 22601903 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 766551201651 in words is "seven hundred sixty-six billion, five hundred fifty-one million, two hundred one thousand, six hundred fifty-one".