1664422127052 has 24 divisors (see below), whose sum is σ = 3883705228032. Its totient is φ = 554799718800.

The previous prime is 1664422127047. The next prime is 1664422127059. The reversal of 1664422127052 is 2507212244661.

It is a junction number, because it is equal to n+sod(n) for n = 1664422126995 and 1664422127013.

It is not an unprimeable number, because it can be changed into a prime (1664422127059) 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, 14224 + ... + 1824567.

It is an arithmetic number, because the mean of its divisors is an integer number (161821051168).

Almost surely, 2^{1664422127052} is an apocalyptic number.

1664422127052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1664422127052 is an abundant number, since it is smaller than the sum of its proper divisors (2219283100980).

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

1664422127052 is a wasteful number, since it uses less digits than its factorization.

1664422127052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914229 (or 1914227 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 1664422127052 in words is "one trillion, six hundred sixty-four billion, four hundred twenty-two million, one hundred twenty-seven thousand, fifty-two".