1664051264624 has 80 divisors (see below), whose sum is σ = 3694296883200. Its totient is φ = 711305805312.

The previous prime is 1664051264543. The next prime is 1664051264627. The reversal of 1664051264624 is 4264621504661.

It is a super-2 number, since 2×1664051264624² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664051264627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157590257 + ... + 157600815.

It is an arithmetic number, because the mean of its divisors is an integer number (46178711040).

Almost surely, 2^{1664051264624} is an apocalyptic number.

1664051264624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1664051264624 is an abundant number, since it is smaller than the sum of its proper divisors (2030245618576).

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

1664051264624 is a wasteful number, since it uses less digits than its factorization.

1664051264624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110 (or 14104 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 1664051264624 in words is "one trillion, six hundred sixty-four billion, fifty-one million, two hundred sixty-four thousand, six hundred twenty-four".