164263421031 has 8 divisors (see below), whose sum is σ = 219038129664. Its totient is φ = 109498829880.

The previous prime is 164263420969. The next prime is 164263421051. The reversal of 164263421031 is 130124362461.

It is a happy number.

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

It is not a de Polignac number, because 164263421031 - 2⁶ = 164263420967 is a prime.

It is a super-2 number, since 2×164263421031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164263420983 and 164263421001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164263421051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491405 + ... + 2556486.

It is an arithmetic number, because the mean of its divisors is an integer number (27379766208).

Almost surely, 2^164263421031 is an apocalyptic number.

164263421031 is a deficient number, since it is larger than the sum of its proper divisors (54774708633).

164263421031 is a wasteful number, since it uses less digits than its factorization.

164263421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058741.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 164263421031 its reverse (130124362461), we get a palindrome (294387783492).

The spelling of 164263421031 in words is "one hundred sixty-four billion, two hundred sixty-three million, four hundred twenty-one thousand, thirty-one".