20464278162 has 8 divisors (see below), whose sum is σ = 40928556336. Its totient is φ = 6821426052.

The previous prime is 20464278161. The next prime is 20464278169. The reversal of 20464278162 is 26187246402.

It is a happy number.

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

20464278162 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20464278161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705356508 + ... + 1705356519.

It is an arithmetic number, because the mean of its divisors is an integer number (5116069542).

Almost surely, 2^20464278162 is an apocalyptic number.

20464278162 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20464278162 is a wasteful number, since it uses less digits than its factorization.

20464278162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410713032.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 20464278162 in words is "twenty billion, four hundred sixty-four million, two hundred seventy-eight thousand, one hundred sixty-two".