765016121104 has 45 divisors (see below), whose sum is σ = 1488583869717. Its totient is φ = 380872461312.

The previous prime is 765016121099. The next prime is 765016121123. The reversal of 765016121104 is 401121610567.

The square root of 765016121104 is 874652.

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

It can be written as a sum of positive squares in only one way, i.e., 467511327504 + 297504793600 = 683748^2 + 545440^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 765016121104.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1570874749 + ... + 1570875235.

Almost surely, 2^765016121104 is an apocalyptic number.

765016121104 is the 874652-nd square number.

It is an amenable number.

765016121104 is a deficient number, since it is larger than the sum of its proper divisors (723567748613).

765016121104 is an frugal number, since it uses more digits than its factorization.

765016121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 765016121104 in words is "seven hundred sixty-five billion, sixteen million, one hundred twenty-one thousand, one hundred four".