164415126450625 has 40 divisors (see below), whose sum is σ = 211110758432640. Its totient is φ = 127935665256000.

The previous prime is 164415126450569. The next prime is 164415126450677. The reversal of 164415126450625 is 526054621514461.

It is not a de Polignac number, because 164415126450625 - 2¹¹ = 164415126448577 is a prime.

It is a super-3 number, since 3×164415126450625³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6375562 + ... + 19221811.

It is an arithmetic number, because the mean of its divisors is an integer number (5277768960816).

Almost surely, 2^{164415126450625} is an apocalyptic number.

It is an amenable number.

164415126450625 is a deficient number, since it is larger than the sum of its proper divisors (46695631982015).

164415126450625 is an equidigital number, since it uses as much as digits as its factorization.

164415126450625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25597675 (or 25597660 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 164415126450625 in words is "one hundred sixty-four trillion, four hundred fifteen billion, one hundred twenty-six million, four hundred fifty thousand, six hundred twenty-five".