162139204426 has 16 divisors (see below), whose sum is σ = 244215004320. Its totient is φ = 80734302000.

The previous prime is 162139204397. The next prime is 162139204477. The reversal of 162139204426 is 624402931261.

It is a happy number.

It is a super-2 number, since 2×162139204426² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3889345 + ... + 3930811.

It is an arithmetic number, because the mean of its divisors is an integer number (15263437770).

Almost surely, 2^162139204426 is an apocalyptic number.

162139204426 is a deficient number, since it is larger than the sum of its proper divisors (82075799894).

162139204426 is a wasteful number, since it uses less digits than its factorization.

162139204426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49509.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 162139204426 in words is "one hundred sixty-two billion, one hundred thirty-nine million, two hundred four thousand, four hundred twenty-six".