164152115777 has 4 divisors (see below), whose sum is σ = 176779201620. Its totient is φ = 151525029936.

The previous prime is 164152115759. The next prime is 164152115807. The reversal of 164152115777 is 777511251461.

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 63343325761 + 100808790016 = 251681^2 + 317504^2 .

It is a cyclic number.

It is not a de Polignac number, because 164152115777 - 2⁶ = 164152115713 is a prime.

It is a super-2 number, since 2×164152115777² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164152115737) 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, 6313542902 + ... + 6313542927.

It is an arithmetic number, because the mean of its divisors is an integer number (44194800405).

Almost surely, 2^164152115777 is an apocalyptic number.

It is an amenable number.

164152115777 is a deficient number, since it is larger than the sum of its proper divisors (12627085843).

164152115777 is a wasteful number, since it uses less digits than its factorization.

164152115777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627085842.

The product of its digits is 411600, while the sum is 47.

The spelling of 164152115777 in words is "one hundred sixty-four billion, one hundred fifty-two million, one hundred fifteen thousand, seven hundred seventy-seven".