77535166406053 has 4 divisors (see below), whose sum is σ = 77535446293900. Its totient is φ = 77534886518208.

The previous prime is 77535166406003. The next prime is 77535166406057. The reversal of 77535166406053 is 35060466153577.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58848030535009 + 18687135871044 = 7671247^2 + 4322862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77535166406053 is a prime.

It is a super-2 number, since 2×77535166406053² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77535166406057) 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, 139527978 + ... + 140082571.

It is an arithmetic number, because the mean of its divisors is an integer number (19383861573475).

Almost surely, 2^{77535166406053} is an apocalyptic number.

It is an amenable number.

77535166406053 is a deficient number, since it is larger than the sum of its proper divisors (279887847).

77535166406053 is a wasteful number, since it uses less digits than its factorization.

77535166406053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279887846.

The product of its (nonzero) digits is 47628000, while the sum is 58.

The spelling of 77535166406053 in words is "seventy-seven trillion, five hundred thirty-five billion, one hundred sixty-six million, four hundred six thousand, fifty-three".