164257477766 has 8 divisors (see below), whose sum is σ = 248017913904. Its totient is φ = 81584839800.

The previous prime is 164257477759. The next prime is 164257477789. The reversal of 164257477766 is 667774752461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 164257477699 and 164257477708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271949165 + ... + 271949768.

It is an arithmetic number, because the mean of its divisors is an integer number (31002239238).

Almost surely, 2^164257477766 is an apocalyptic number.

164257477766 is a deficient number, since it is larger than the sum of its proper divisors (83760436138).

164257477766 is a wasteful number, since it uses less digits than its factorization.

164257477766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543899086.

The product of its digits is 82978560, while the sum is 62.

The spelling of 164257477766 in words is "one hundred sixty-four billion, two hundred fifty-seven million, four hundred seventy-seven thousand, seven hundred sixty-six".