180447466648 has 8 divisors (see below), whose sum is σ = 338338999980. Its totient is φ = 90223733320.

The previous prime is 180447466571. The next prime is 180447466663. The reversal of 180447466648 is 846664744081.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×180447466648² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180447466592 and 180447466601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277966658 + ... + 11277966673.

Almost surely, 2^180447466648 is an apocalyptic number.

It is an amenable number.

180447466648 is a deficient number, since it is larger than the sum of its proper divisors (157891533332).

180447466648 is a wasteful number, since it uses less digits than its factorization.

180447466648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22555933337 (or 22555933333 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 58.

The spelling of 180447466648 in words is "one hundred eighty billion, four hundred forty-seven million, four hundred sixty-six thousand, six hundred forty-eight".