77665224514001 has 4 divisors (see below), whose sum is σ = 77665427518272. Its totient is φ = 77665021509732.

The previous prime is 77665224513991. The next prime is 77665224514027. The reversal of 77665224514001 is 10041542256677.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77665224514001 - 2³⁰ = 77664150772177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77665224514081) 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, 100927181 + ... + 101693786.

It is an arithmetic number, because the mean of its divisors is an integer number (19416356879568).

Almost surely, 2^{77665224514001} is an apocalyptic number.

It is an amenable number.

77665224514001 is a deficient number, since it is larger than the sum of its proper divisors (203004271).

77665224514001 is a wasteful number, since it uses less digits than its factorization.

77665224514001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203004270.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 77665224514001 in words is "seventy-seven trillion, six hundred sixty-five billion, two hundred twenty-four million, five hundred fourteen thousand, one".