766496647653 has 16 divisors (see below), whose sum is σ = 1120680929856. Its totient is φ = 462136458240.

The previous prime is 766496647591. The next prime is 766496647687. The reversal of 766496647653 is 356746694667.

It is not a de Polignac number, because 766496647653 - 2³⁸ = 491618740709 is a prime.

It is a super-2 number, since 2×766496647653² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766496648653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60167650 + ... + 60180387.

It is an arithmetic number, because the mean of its divisors is an integer number (70042558116).

Almost surely, 2^766496647653 is an apocalyptic number.

It is an amenable number.

766496647653 is a deficient number, since it is larger than the sum of its proper divisors (354184282203).

766496647653 is a wasteful number, since it uses less digits than its factorization.

766496647653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120348244.

The product of its digits is 823011840, while the sum is 69.

The spelling of 766496647653 in words is "seven hundred sixty-six billion, four hundred ninety-six million, six hundred forty-seven thousand, six hundred fifty-three".