164015655523 has 2 divisors, whose sum is σ = 164015655524. Its totient is φ = 164015655522.

The previous prime is 164015655509. The next prime is 164015655533. The reversal of 164015655523 is 325556510461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164015655523 is a prime.

It is a super-2 number, since 2×164015655523² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164015655523.

It is not a weakly prime, because it can be changed into another prime (164015655533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82007827761 + 82007827762.

It is an arithmetic number, because the mean of its divisors is an integer number (82007827762).

Almost surely, 2^164015655523 is an apocalyptic number.

164015655523 is a deficient number, since it is larger than the sum of its proper divisors (1).

164015655523 is an equidigital number, since it uses as much as digits as its factorization.

164015655523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 164015655523 in words is "one hundred sixty-four billion, fifteen million, six hundred fifty-five thousand, five hundred twenty-three".