766297147456 has 21 divisors (see below), whose sum is σ = 1520634798831. Its totient is φ = 383145072192.

The previous prime is 766297147439. The next prime is 766297147471. The reversal of 766297147456 is 654741792667.

The square root of 766297147456 is 875384.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×766297147456² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 6948361 + ... + 7057783.

Almost surely, 2^766297147456 is an apocalyptic number.

766297147456 is the 875384-th square number.

It is an amenable number.

766297147456 is a deficient number, since it is larger than the sum of its proper divisors (754337651375).

766297147456 is an frugal number, since it uses more digits than its factorization.

766297147456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218858 (or 109425 counting only the distinct ones).

The product of its digits is 106686720, while the sum is 64.

Multiplying 766297147456 by its sum of digits (64), we get a square (49043017437184 = 7003072²).

766297147456 divided by its sum of digits (64) gives a square (11973392929 = 109423²).

The spelling of 766297147456 in words is "seven hundred sixty-six billion, two hundred ninety-seven million, one hundred forty-seven thousand, four hundred fifty-six".