1642122406000 has 80 divisors (see below), whose sum is σ = 4067497351008. Its totient is φ = 640828224000.

The previous prime is 1642122405977. The next prime is 1642122406021. The reversal of 1642122406000 is 6042212461.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1642122406000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9930942 + ... + 10094941.

Almost surely, 2^{1642122406000} is an apocalyptic number.

1642122406000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642122406000 is an abundant number, since it is smaller than the sum of its proper divisors (2425374945008).

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

1642122406000 is a wasteful number, since it uses less digits than its factorization.

1642122406000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025947 (or 20025931 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1642122406000 its reverse (6042212461), we get a palindrome (1648164618461).

The spelling of 1642122406000 in words is "one trillion, six hundred forty-two billion, one hundred twenty-two million, four hundred six thousand".