164894440252929 has 32 divisors (see below), whose sum is σ = 226332907167744. Its totient is φ = 106733620460160.

The previous prime is 164894440252903. The next prime is 164894440252979. The reversal of 164894440252929 is 929252044498461.

It is not a de Polignac number, because 164894440252929 - 2⁸ = 164894440252673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164894440252979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357279 + ... + 18163604.

It is an arithmetic number, because the mean of its divisors is an integer number (7072903348992).

Almost surely, 2^{164894440252929} is an apocalyptic number.

It is an amenable number.

164894440252929 is a deficient number, since it is larger than the sum of its proper divisors (61438466914815).

164894440252929 is a wasteful number, since it uses less digits than its factorization.

164894440252929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18521437.

The product of its (nonzero) digits is 358318080, while the sum is 69.

The spelling of 164894440252929 in words is "one hundred sixty-four trillion, eight hundred ninety-four billion, four hundred forty million, two hundred fifty-two thousand, nine hundred twenty-nine".